Today, I finished creating the Prop-1 to RC controller interface circuit. The schematic, for ExpressSCH is available here.
It works like a charm, all simple transistor logic, no relays, no nothing. Now, with a simple 3 lines of code in the Prop-1 program I can remotely trigger a prop ~30 feet away.
HIGH Bkwd
PAUSE 300
LOW Bkwd
One cool thing of note, I submitted the schematic to the support forum for the Prop-1. The head programmer / developer gave it his ok, and complimented me on part of the design.
John's Musings 
Alright, all of your Halloween stuff is brilliant! Holy Techno-Awesomeness!
Nice work John! Elegant! Occam would be proud.
You should seel this stuff and make millions off other Halloween freaks like yourself.
Have a GREAT time tonight!