this is a rubber band powerd noise thing. It is great for making people jump and waking them up.
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
first take the cardboard inside of a toilet roll then cut a circle of tracing paper 20cm wide and 20cm long place over the tube and fasten with a rubber band
fire as shown below hope you have fun.
Participated in the
Klutz Rubber Band-Powered Contest