3D printed Props
If you have access to a 3D printer, you may want to check out Thingiverse for communications, badges and other Star Trek Props. For example: http://www.thingiverse.com/search/basic?q=star%20trek
Here's some for Babylon 5: http://www.thingiverse.com/search/basic?q=babylon%205
There's more than these available at Thingiverse, just do a search for your favorite prop. It might be there.
I really need to get me one of these new-fangled replicators...
Played with some 3D printing myself a few hours ago at the local makerspace.
I've got some rank pins I created in OpenSCAD that I need to print out as well.
I needed to print 2 at once to prevent "burning" the tip of the center arrow on this version. (With a 0.25 nozzle)