This is a simple, fun, and sneaky way of throwing tiny objects. It’s from one of our spy-kit projects. Just remember, keep it under-cover. Here’s what you need:
a cheap mechanical pencil
two rubber bands
a razor with adult help
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Mechanical pencils (the inexpensive kind) are best for this project, because you can separate out the inner rod from the outer tube. Straws are too flimsy, so look for tubes that are thin and rigid and then locate a rod that is a smaller diameter – watch the video to see how we make the project, and then do your best to substitute for the materials based on how we use each part.
Is there anything we can use to substitute the mechanical pencil? Or can we use a different kind of mechanical pencil?
Mechanical pencils (the inexpensive kind) are best for this project, because you can separate out the inner rod from the outer tube. Straws are too flimsy, so look for tubes that are thin and rigid and then locate a rod that is a smaller diameter – watch the video to see how we make the project, and then do your best to substitute for the materials based on how we use each part.
Is there anything we can use to substitute the mechanical pencil? Or can we use a different kind of mechanical pencil?