[Amps] Panel lettering

[Charles Bibb - K5ZK]

Can someone on the list point me in the right direction to find some 
lettering for the front panel of my latest HB amp?

I used to buy "dry transfer" or "rub-on" lettering at Radio Shack (I 
think it was), but they don't carry it now.

I'd like to find packs of lettering with a "radio" or "electronics" 
theme, making it easier to do whole words or phrases.

I've looked on ebay, but haven't found anything satisfactory. Maybe 
I'm using the wrong search terms.

Any help?

73,
Charles - K5ZK