Wow! Interesting. I'll have to check the second list posted here. The first link didn't have one of the gnomes that I had been sent in the mail as a gift. I'll have to research and find out what it is.
I had no idea there were so many different ones. And while I agree they are cute, funny and an unexpected surprise, my annoyance is when I can't see that they are blocking something that I've sent my Sim to do and it takes me a while to notice that a gnome is laying on the floor in the way.
Seeing these amazing collections, I wish I hadn't started selling off the Butternut ones. I have around 4 on the lot right now and I know I've sold at least that many. If only you could lock them to a particular area.