I just couldn't resist using the "muchless" pun for a faceplate on my Lightning amp cab.  The guys at SourMash built me the cab to matchless specs for $200.  It was pretty cheap and easy to make the faceplate. All you need is:
1. Translucent plastic. A  local plastics sign material dealer gave me some scraps for free.
2. Black plastic bonding spray paint from Home Depot.  $4
3. Bubble Buddies scrapbook letters from Hobby Lobby. $4
    Place on, paint over, and pull off for lighted logo.
4. Battery operated fluorescent utility lamp. $6
5. Wire and On/Off toggle switch.  I already had but readily available at you local Radio shackfor a few $.
6. Wood, plastic, or metal scraps to build the light box.
7. Imagination. Free

The paint I used is Krylon Fusion for plastic. 
http://www.krylon.com/products/fusion_for_plastic/

The letters were actually a bit hard to find.  I lucked out and found one type of stickers out of hundreds that would work.  You'd think it would be common since it's just standard times roman numeral caps font.  But most alpabet stickers seem to be in odd fonts.  Here's something I found on the web that could work.
http://www.stickersgalore.com/shop/theme/characters/subtheme/alphabet/121882