Here's another tape idea, we use the heck out of Kapton tape at work. We use it for just about everything, even on the space shuttle. They sell them on e-bay and all over the place, it's great stuff, no tape residue, great for keeping things super clean. It sticks to it self and is reasonably strong if you use it like a rope. But duck tape is far superior to it by far, just lots of residues and outgassing with it. Kapton doesn't outgass which is a DOD requirement (at least the stuff we have, possibly all 3M is non outgassing).

http://www.kaptontape.com/