Looking for a fun, easy, and budget-friendly DIY toy? The Plastic Cup Marshmallow Shooter is a simple yet exciting project that kids will love! Whether it’s for a backyard battle, a science experiment on force and motion, or just some indoor fun, this homemade toy is perfect for all ages. Best of all—no glue, no sewing, and only a few supplies needed!
Let’s get started!
Why Kids Will Love This DIY Shooter
✅ Super easy to make in just 10 minutes
✅ Uses common household items
✅ Encourages creativity and hands-on learning
✅ Fun way to explore basic physics concepts like force and trajectory
✅ Safe for indoor and outdoor play
Supplies Needed
- 1 plastic or paper cup (clean and discarded)
- 1 balloon
- A pair of scissors
- A lightweight “missile” (such as a pompom or a crumpled tissue)
Step-by-Step Instructions
Step 1: Cut the Bottom Off the Cup

Use scissors to carefully cut the base off a plastic or paper cup. This will create the open end of your shooter.
Step 2: Prepare the Balloon
Tie a knot at the neck of the balloon.

Use scissors to snip off the tip of the balloon, creating an opening.
Step 3: Attach the Balloon to the Cup
Stretch the cut end of the balloon over the open top of the cup.
Make sure it’s snug and secure—this is what will create the launching power!
💡 Tip: This step can be a bit tricky, but after making a few, you’ll get the hang of it!
Step 4: Load the “Missile”

Drop a lightweight object (like a crumpled tissue, pompom, or small soft ball) into the cup.
Avoid using hard or heavy objects (like marbles or small toys) to prevent injury or damage.
Step 5: Fire Away! 🚀
Hold the cup with one hand.
Use the other hand to pull back the balloon knot, aim, and release!
Watch as your “missile” soars through the air!
The Science Behind the Fun
This DIY shooter is a great way to introduce kids to basic physics concepts:
🎯 Potential Energy & Kinetic Energy:
When you pull back the balloon, it stores energy (potential energy).
Releasing the balloon converts that energy into motion (kinetic energy), launching the object forward.
🎯 Force & Motion:
The harder you pull back on the balloon, the faster and farther the missile will travel!
🎯 Air Resistance & Gravity:
Watch how different objects travel through the air based on their shape, weight, and size.
Fun Ways to Play!
🎯 Target Practice: Set up cups or paper targets and see who can hit the most!
🎯 Distance Challenge: Compete to see whose marshmallow flies the farthest!
🎯 Experiment with Different “Missiles”: Try using different lightweight objects (cotton balls, small paper balls) and see which one goes the farthest.
Final Thoughts
The Plastic Cup Marshmallow Shooter is a super fun, easy-to-make toy that’s perfect for playtime, parties, or even science lessons. It’s a great way to keep kids entertained while teaching them about energy, force, and motion—all with just a few household items!
So grab your supplies and get ready to launch some fun! 🚀
Would you like a printable instruction sheet for this activity? Let me know! 😊
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