OK, a bike related question.

I need to find a shim for a front derailleur. I have a 1 1/8 diameter seat tube but a 1 1/4 clamp. Are these things made or do you have to fudge them up somehow? If I can't I gues I'll be looking on e-bay for a new derailleur.

And also, what's the best way to install a headset at home without tons of tools needed? Has anyone used the carriage bolt with washers and nuts on the ends technique? For an older frame I figure this might work out OK.