I was looking at the other K-nex weapons and thought why not make my own so here it is
Step 1: The Parts
The pieces really important so don't forget to put them on. (lol)
Step 2: Creat the Base & Suport
after you have created them snap em together (the white stick goes to the top partof the red).
Step 3: The Launcher's
Next snap the grays on to the suports. And put the black things on.
Step 4: The Projectile
I havent tested on it much but I think that it goes farther with the one of black pieces on the opposite snowflake thing.