I love how gmod handles physics and I love goofing off! And in a game made for goofing off I spend most of my time testing how exactly the physics work. Mostly just by screwing around and doing something, then seeing what happens.
Messing around with simple elastics is one of my favorite things to do! I have made some videos on what kind of patterns elastics can make. Complete with a simple tutorial.
Be sure to watch in full HD for best quality!
Tutorial + Part 2
It’s not your normal “contraption” but us contraption people see gmod in a completely different way than say gamemode or machinima and other people see it. We see it as a way to mess around like a child playing with marbles.
Also on a request I made a Gmod animated background of the videos. It doesn’t use any extra resources loading because it’s just a .vtf file.
http://www.mediafire.com/?xeye2f6lahfcmvd You can download it here with instructions inside.