Gear monster rubber band gun. By kinohagurama.
0:07 video:
https://www.youtube.com/watch?v=UlB1j6Ymq0o
0:17 video:
https://www.youtube.com/watch?v=RDgg9qkAYYQ
0:32 video:
https://www.youtube.com/watch?v=qwxIXLrq7lE
0:31 video:
https://www.youtube.com/watch?v=tEVBwaFFyP0
Previously: https://www.homemadetools.net/forum/...0818#post73193
