OK, the backs look interesting. Simple, clean. But the name? When I hear "Ren," I think of Renaissance Faires, a.k.a. RenFaires, and the people who love them, work for them, attend them in costume - Rennies!
I still remember going to one near my home - there was a gathering place in the rear that appeared to be for the staff. Someone hung a sign: "Please don't feed the Rennies."
So - how about the faces?