EFFALO designed these nifty geodesic dome connectors and wanted to do a distributed manufacturing experiment by offering to pay $2 if you send them a part. I figured I'd send one, but I wanted my piece to be personalized. He helpfully supplied the openscad code so I added my bitmap module and added my initials and my logo on top.

You'll need my openscad-bitmap module from: http://www.thingiverse.com/thing:2054

You can add your own initials by editing the initials and/or logo_bitmap variable at the top of the script. You could also use it to number the connectors or whatever.