I forgot a couple.
I use the same rubber bands as weapons slings or equipment tie-downs.
Turning a staple into a caribiner and hooking it into Hit&Run's waist piece. His rope simply slips into it now.

Used an old boom box as a main computer/communications wall for my JOEs. The cassette cover functioned as the viewscreen, the speaker cover were heat vents, and the manual tuner was used as a ticker for scrolling info.
I mentioned this before, but I used to have one of those Hot Wheels tracks with the plastic rubber band car launcher. This was just after the Falcon w/Tan Grunt came out. I didn't get either the Falcon or the Cobra one, so I carefully designed a hang glider from decent thickness cardboard. I found the right balance for Airborne and pierced a hole through it. His backpack went through the top and he went on the bottom, nicely secured.
Then I spread his legs and position him and the glider in the slot. Push the release button and Airborne flew 20-30 feet away. By bending the wing tips I could get him to curve around a lamp and into the other room (which was so frickin' cool to see with my 12yo eyes).
Amazingly enough, I never broke any waist pieces in the process. I miss that launcher.
BTW-the CO2 bottles for a JUMP? I knew better than to risk losing my JOEs. Since I never actually got a JUMP, I had to make do. Something about the color of the CO2 tanks made it look like fuel tanks. Of course, they were bulletproof so nobody turned into a shooting star...

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