Honeywell Tilt-a-Mite II
I have two things you might be interested in.
1st- Honeywell Tilt-A-Mite II. Pretty neat little flash. I believe it is a hot shoe, however if you want to put it on a side bracket, the top flips back and you can unplug the PC cable and plug into your camera. There is a button on the back that says "cube advance", so apparently it takes cubes.
2nd- Canon J-3, cold shoe with PC cable. a switch on the bottom lets you choose if you want to use "AG" bulbs or "PH" bulbs. There is one (1) bulb in the flash and a package of five (5) to go with it.
I really don't know what these things are worth, so make me an offer and remember I like camera stuff too.
PS-I did rotate these, but for some reason it didn't end up that way when uploaded.