Where to buy ballgag?

I’m hunting online for a ballgag that meets specific criteria.

The two side straps need to cross underneath the eyes, connecting with the headstrap at the nose bridge, just like in the Conversation Piece image on the forum’s lead page.

However, it must be black leather paired with a black ball. A chin strap would be nice but isn’t essential.

I realize I’m being particular because I know what I want, and I’m trying to track down one that checks all my boxes. So far, no luck; there’s always something slightly off.

A European seller is ideal, though I can order from further afield if it fits perfectly.