[Didymus]

Great suggestion, Countach. Actually, ye olde Blu-Tak and its relatives can be used to pick up all sorts of stuff. The nice thing is that it releases the part easily. It's a drag when you've applied glue to the surface and carefully placed the part in just the right position, and then the f#!$&% 'in stick-um won't let go.

We do have Blu-Tak in the U.S., and Michaels sells yellow poster tack that's cheaper and works well. I dunno about Silly Putty, though. I think it's completely different stuff.

I once tried modeling clay, but it left a greasy spot on the part.