Surprise!

An hidden elastic action to propel polystyrene balls out of a coffee bean box. They go everywhere! (And still leaves space for the coffee...)

You will need...

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How it works...

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We had to add a plastic strip to reinforce the butterfly pins inane hold them in place. 

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A cardboard panel to push the polystyrene balls out.

 
 
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Tightly bound string to hold everything in place until it's opened! 


The Result...