Ok, I'm making a parts order soon, and am taking orders for custom arcade sticks.
here's a pic so you get the general drift, though not all my sticks are pictured:
http://www.templeofinsanity.com/images/tech/sticks.jpg

Here's the pricing structure:
Nes, SMS, 2600/7800, tg16(you must provide a pad) = $50
Genesis, SNES, Saturn, DC, n64 = $60
Virtual boy - $70 due to extra stick needed.
I've sold a small number of these. If you use EFNET IRC, you can ask xt0rt, he will be happy to speak of the quality, as will DP members Mgriff and Cuewarrior.
I build these with HAPP super sticks and ultimate pushbuttons. If all black buttons is not to your liking, let me know - i have not yet ordered the buttons, and happ does carry about six colours.

Thanks in advance.