willular saidleather with snaps. easy on, easy off.
I'd agree - to begin with, and the see how you get on!
A snap on/off will also help you identify sizes if you decide to HO for metal or rubber.
Alternatively, rubber might be a good place to start as they are more flexible for getting on/off - that's the first type I tried.
Then got leather snap one, and also a leather one that has snaps around balls -which I don't like as its uncomfortable, and even the first snap is too tight (and I've not got particularly big balls!)
Metal feels really different, as the weight adds to the effect (well, for me) and obviously it's cold to the touch.
Try and see how you get on!