Spaghetti Box Kids

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Easy to Make Catapult- Egg Carton Design

June 29th, 2011 · 39 Comments

It happens to all of us sometime or other. We’re about to throw away an empty egg carton, and we say to ourselves: I know I can use this for some project, I’m just not sure what. You’re in luck, especially if you’ve ever considered how to build a catapult for kids. The empty egg carton serves as the ideal base for an easy to make catapult.

What You Need:catapult designs
-empty egg carton
-masking tape
-rubber bands

What to Do:

1. Cut the egg carton in half. A cardboard carton works best, but you can also use styrofoam. (figure 1)

2. Stuff each socket with a ball of newspaper in order to reinforce the base of your catapult. (figure 2) Now close the lid and secure the carton with a rubber band. (figure 3)egg carton project for kids

3. Wrap two or more rubber bands (depending on the size/ strength) around the base of the carton, just below the opening in the middle. (figure 4)

4. Tape a rubber band to the end of the handle on a teaspoon. (figure 5.1) and (figure 5.2)

5. Insert the handle of the spoon beneath the rubber bands you wrapped around the base in step 3. (figure 6)catapults for kids

7. Now take the rubber band you taped to the handle of the spoon in step 4 and stretch it straight up and over the spoon and wrap it around the back of the carton. (figure 7) and (figure 8)simple catapult design for kids

8. Now wrap two or more rubber bands (depending on the size/ strength) around the base of the carton, just above the opening in the middle. (figure 9)

9. Attach a “leash” to the spoon (not too tightly) by securing a rubber band between the the spoon and the top of the egg carton. Use tape as necessary. This “leash” will enable the catapult to launch objects on an arc instead of a line drive. easy catapult designs for kidsAdjust tightness of leash to achieve optimal results. (figure 10 and 11)

10. Your catapult is now complete. (figure 11)

How to launch objects:

Pull back spoon. Insert small object. Point catapult in preferred direction, then to build easy catapult for kids

Objects to launch:

Paper balls, cut up sponge pieces, styrofoam balls, cotton balls, etc.

Games to play:

-Use a bucket or salad bowl for a target. how to make a rubber band catapultGive each player ten objects and see who can make the most into the bucket. If objects are uniform, keep track by coloring them with a marker (for example: red for player one/ blue for player two).

-One player keeps launching objects at the bucket until three in a row are made. Now count how many objects were used. The next player does the same thing. The player who used the fewest objects wins.

-Place a coin on the floor. Each player launches five objects, trying to get as close to the coin as possible. Give points to the three closest objects. For example, two points for player one, and one point for player two. Keep playing until one player reaches eleven points.

Once you know how to build a catapult for kids, there’s an endless variety of games you can play and invent. Keep in mind that because your child was part of the building process, she will have a greater willingness to tinker with the mechanical design. Don’t be surprised in a few days if your child has taken complete ownership of the mechanical engineering behind the catapult.

Q: This egg carton design seems tricky. Do you have a more simple catapult design for kids?

A: Yes, these are more simple:
Easy to Make Catapult: Amazing Dimple Design
Easy to Make Catapult: Basic Design

Q: Do you have other designs?

A: Yes. All the catapult designs on this site are listed right here:
Catapult Designs for Kids

Have fun!

Tags: Kids’ Activities · Kids' Science

39 responses so far ↓

  • 1 Maria // Jun 30, 2011 at 1:21 am

    Good design. I’m going to try this weekend with my kids. I like that I can just use things from around the house :)

  • 2 Spaghetti Box Kids // Jun 30, 2011 at 12:02 pm

    Maria- Hope you can enjoy some of the other catapult designs on this site also. Same basic requirement– just household items. Good luck-

  • 3 Dana // Jun 30, 2011 at 5:44 pm

    Nice-keep up the great work!!

  • 4 Spaghetti Box Kids // Jul 1, 2011 at 8:38 pm

    Thanks for visiting. Best of luck with your catapult–

  • 5 Mike // Jul 2, 2011 at 1:19 pm

    Good work. My 4 and 6 yr olds love it when I say I’m going to check spaghetti box kids for something to do. WHere are you getting your cataplt designs by the way?

  • 6 Spaghetti Box Kids // Jul 5, 2011 at 3:38 am

    Mike, I’m glad to hear the site is a go-to resource for you. All the catapult designs are completely original- you won’t find them anywhere else.

  • 7 Sam // Aug 29, 2011 at 3:51 pm

    Nice Job. This looks like a lot of fun.

  • 8 Spaghetti Box Kids // Aug 30, 2011 at 11:32 am

    Thanks. Hope you have fun with it. Once you get the hang of it, it’s kind of catchy. Cheers -AV

  • 9 Kilala20000 // Oct 14, 2011 at 3:36 pm

    My class is doing an egg lunching experiment. this caopult is gunna be my chooise for it.

  • 10 Spaghetti Box Kids // Oct 14, 2011 at 3:50 pm

    Good to hear. You might try this design also–it’s more durable for launching an egg:

    Easy to Make Catapult -Brawny Launcher Design

    Good Luck—

  • 11 barrrrrryyyyyy // Nov 20, 2011 at 1:13 am

    can you use hairbands instead of rubberbands to wrap around it

  • 12 Spaghetti Box Kids // Nov 20, 2011 at 2:56 pm

    Unfortunately, hairbands won’t get the job done. You need the strength of a rubber band. The best rubber bands are standard 3 1/2″ x 1/4″ (also known as size 64 if you pick them up from an office supply).

  • 13 barrrrrryyyyyy // Nov 26, 2011 at 12:50 am

    this is very confusing on the last few steps and it doesnt work

  • 14 barrrrrryyyyyy // Nov 26, 2011 at 1:16 am

    the tape doesnt hold the band down

  • 15 barrrrrryyyyyy // Nov 26, 2011 at 1:23 am

    i finally got it to work yeahhhh

  • 16 Spaghetti Box Kids // Nov 26, 2011 at 12:56 pm

    b– I’m glad you stuck with it and it worked out. The design can be tricky the first time. I gave it a low mark for “Ease of Construction” in this Chart that rates the catapults.

    Also, in light of your feedback, I added some text to figure 10.


  • 17 bum // Feb 28, 2012 at 6:11 pm

    how far does this launch?

  • 18 rd // Mar 2, 2012 at 3:21 pm

    I can shoot a small paper ball about 11ft with the roll. The soda can design is stronger.

  • 19 Spaghetti Box Kids // Mar 10, 2012 at 11:46 pm

    rd- Good to hear from you. Thanks for sharing your results. –AV

  • 20 josh hayes // May 29, 2012 at 4:03 pm

    this website is good for projects for science

  • 21 Spaghetti Box Kids // May 31, 2012 at 12:18 pm

    josh- Thanks for weighing in. I’m glad you find the site useful for school. That’s just great to hear. Good luck. AV

  • 22 Cg // Jun 27, 2012 at 11:20 am

    Can you use soup cans for the soda can plans?

  • 23 Cg // Jun 27, 2012 at 11:22 am

    This is the best website


  • 24 Spaghetti Box Kids // Jun 27, 2012 at 11:41 pm

    Good question. I can’t think of any reason why you couldn’t. If you try it, let us know how it works out.
    Thanks for the feedback-

  • 25 tom // Aug 25, 2012 at 12:21 pm

    I just don’t understand

  • 26 Spaghetti Box Kids // Aug 25, 2012 at 10:42 pm

    Tom, try a different design:

    Catapult Designs for Kids


  • 27 brittany // Oct 2, 2012 at 12:27 am

    how many feet does it launch ?

  • 28 Spaghetti Box Kids // Oct 2, 2012 at 1:26 am


    Depends what you’re launching and how well the catapult is made. On average, maybe 6-9 feet. This is not one of the stronger designs. If you’re looking for distance, try:
    Superfling Design (avg 18-22 ft)
    Soda Can Design (avg 15-18 ft)
    Brawny Launcher Design (avg 10-12 ft)

    Good luck-

  • 29 Anonymous // Feb 13, 2013 at 4:06 am


  • 30 blake // Feb 13, 2013 at 4:10 am

    Cool thanks i am using this one

  • 31 colby // Apr 26, 2013 at 10:09 pm

    thank you i was wondering how to make a catapult for a science project and so i got on you tube and i seen your video at the top so i looked at it and i got an a+ thank you so much

  • 32 Spaghetti Box Kids // Apr 27, 2013 at 2:07 pm

    Colby, Glad to hear it. Nice work–

  • 33 2827 // Apr 30, 2013 at 10:27 am

    i will probly use this for school ? is this ok

  • 34 Spaghetti Box Kids // Apr 30, 2013 at 2:18 pm

    2827- Yes, certainly. Good luck–


  • 35 fatguyseatpie // May 31, 2013 at 10:08 am

    can it come with cake

  • 36 barry // May 31, 2013 at 10:15 am

    this catapult is the bomb

  • 37 i'mabrick // Jun 3, 2013 at 10:04 am

    lets smash things!

  • 38 bob // Aug 13, 2014 at 7:02 pm

    awesome designs

  • 39 Charlotte // Feb 22, 2015 at 2:13 pm

    My class made these last year (age6-7) and they loved it! It wasn’t too difficult for them either. I’m making them again with my new class in a couple weeks because it was so good. Thank you for sharing!

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