I love the terminal designs I've seen on Thingiverse so far, but I stumbled on a design similar to this online and couldn't find the 3D file for it, so I decided to make it from scratch.
The idea is to "upgrade" the terminal instead of replacing it entirely. In certain campaign missions, it matters what color the terminal is, so this makes it easy to flip the token while still giving the board a little more style!
Update: I changed the orientation of the terminal to save you all a few moments when wanting to print.
Some people have asked for a version for the crate tokens. Dakron has made just that and it's excellent! You can find them here: http://www.thingiverse.com/thing:2214192