Ah, yes, Garry's mod.
xd I'll post some of my hovercraft things after class. I had then set up with a remote camera, directional thrust all on keybinds, and all kinds of cool stuff.
Edit: And now, on to the pictures!
My greatest creation:

The thing up on a ramp for ease of working on it. Seen from the front-right.

More of the same, from the front-left.

This ones's straight from the front. There was limited room on the sides for strafing thrusters, so I slapped them in here. You can also see the prop camera used for remote navigation.

Seen here from the right side from a low angle to show just how much upward thrust the thing has available. Not all are on the toggled hover option--a number of those were on a seperate key that I simply called "jump". (Well, tjump, since I originally aliased over the built-in jump thing...
sweatdrop )

And from the back. Since it's so dark, it's hard to tell, but at each end of the "wings", there are four thrusters, and there's another cluster of four set low in the middle.
For how much I got to actually use this thing, it was fantastic. It was also the best at crashing the game, but almost all did that. (this is the only one that crashed it before leaving the workbench thing, though)
xp Too many collisions, overflowed stacks, etc. I got really good at that one
xd