A Pen Shooter

Welcome this is my second project this is pen shooter for fun ignore my grammer mistake

1. A cardboard peace
2. a spreeng
3. some pens
4. cello tap
5. thread
6. happy ness
7. a thing whose front side is spongy

for cut the card board
and take a pen and take his cap

paste cap on the pen
and just paste spring on the front of the pen

for shooting take a thread and tight it with spreeng

now just keep you substance in and and the other side of thread will be tight with hand
and down your hand by the spring potential energy your substance will shoot