This sturdy tool traps their shaft and tip in five metal rings connected to a leather strap. There's also a very handy little leash or tether connector, if you're after even more of a master/sub dynamic.
In leather and metal, the Gates of Hell  should be spot cleaned as needed.
* Rings measure 1.25"/3.2, 3x 1.5"/3.8cm  and 2"/5.08cm and 2"/5.08cm. Strap length is 4.75"/12.1cm