Good site to buy knife custom parts?

[Bo-dacious]

Hey guys, can someone tell me a good site to buy knife customization parts and services? I'm looking for things like custom scales (including microstimpling I think it's called, please correct me), and customizations like a groove for ferro rod scraping in case I can't or don't want to do it myself. Things like that.
Any recommendations?

Thanks guys,

BO-DACIOUS