I used to adopt from the Pound, zap the pet then put it back into the Pound again. But recently I've been creating new pets with good names, zapping those and putting them UFA in the Pound forum.
I don't know why, but I love doing this and have come up with amusing and thoughtful names such as "FiveMoreMinutes" and "SomeoneCares". After adopting out a freshly-zapped-to-plum Chia, I made a JubJub to zap, with the name of "GoAndPlayWillYa", but I might keep him if I get a colour I like!
My fave species to zap are Chia, JubJub and Kiko as they give funny results!