spring+ding

=Spring Ding= =(spring gun)=

Materials: empty soda cans, big spring, string

It is a toy for either indoor or out door
It works by there is a spring inside the soda cans and then there is a little hole in the back where there is string you pull the string back then you hear ding or click then put the ball inside the cartridge and then you push the trigger then boom!!! A ball comes flying out.