[Amps] Labeling panels

[Vic K2VCO]

What's a good way to label an unpainted aluminum panel? It has a 'satin finish' thanks to 
an orbital sander, which really has covered a multitude of sins.

I looked into custom engraved adhesive-backed plastic plates. There are a number of 
companies that will make them, and they would look great. But they are about $4 each, and 
I'd need about 12 of them, not counting the bandswitches (I admit to having separate grid 
and plate bandswitches) which would need 6 each!

One possibility is printing on 'transparency' stock with my laser printer. But I don't 
know how I would attach labels made out of this stuff.

Another is to print on transparent sticky labels. Has anybody done this?

I need a process that would work well on an already-built amplifier...I should have done 
this before assembly, but I didn't.

By the way, does anyone have a chart frame like the ones used in BC-375 tuning units or 
similar that they want to part with?
-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/