Alright you Wildmen! Whatever you do, don't call Piorek and tell him, "Don says you can make Custom Knuckles out of Titanium!"
I'm positive that he can do it, but he may choose not to for a half dozen reasons, one of which may be cost, you guys may not want to pay for it!
However, it never, ever hurts to ASK! Ha Ha Ha Ha!
------------------
"You're about as sharp as a sack of wet mice..." ~~F. Leghorn