Picture of The mini and easy rock launcher
My friend showed me this istructable but he dosent have an account so ill put it on mine oh by the way this is soooo easy

Step 1: Get the stuff

you will need a toilet roll or a clingfilm roll or any sort of card board roll i used a kitchen roll roll.some scissors and some rubber bands i used four
tenwytr6 years ago
.....but i do have an account! XD (to those reading this comment, I am the friend he mentions.)
the_mad_man6 years ago
at school we made a rock thrower that was simpler than this, you cover one end of a piece cardboard tube with tape/paper/something. drop a small rock down, hold it by the sealed end and swing. we have thrown a pebble about the size of your thumbnail about 30-50m