By non-magical gnomes do you mean the ones that just stand there and never do anything? I think they are called Sleeping Gnome McNulty. You can find several of them on display in the General Store in France.
If you mean other types of gnomes, I'm currently researching all the gnome types and all the ways you can acquire them. Doing at least 7 loads of laundry on the high end washer, (the red one the others don't work), usually will net you Abracadabra, the laundry gnome. He looks like a teddy bear and yes, he does play peek a boo. (Sort of)
All gnomes are available in buydebug some are available randomly at the consignment store.