Knobs
I am currently making custom cabinet knobs.
No two are identical but can be similar.
Zeus (same knob twice)
Blue Buddah (the crack is thermal, not a compatibility crack) and Hamon Encasement Crystal over black.
Normally I wouldn't share a picture with a crack but I really enjoy the look but one of the Blue Buddahs is experimental so I can't recreate it.
Green Envy
Black Nebula

I will try to get good pictures of assorted knobs on cabinets soon. :)