Hmmm.
There's a (non-critical) switch for my 2000 Honda Foreman that I can't find anywhere except direct from Honda or a dealer and I don't think it's worth the $100+ they want from it. For other model years, I can find it from $20 - $60 which is more reasonable.
I've been thinking of making my own for a while but now you have me thinking of making them for resale. I can't be the only person in this situation.