I got conjoined gnomes! Well I got a glitch that caused two gnomes to sit so close they share an arm and a leg. And look who's lurking in the background, finally got my Mccrackernacker. I did cheat a bit as I got her by redeeming tokens rather than her just showing up. I just couldn't face seeing my poor sim puking and peeing through another autumn.
http://lvlt.thesims3.com/sims3_asset/sims3_asset/media/shard000//shard000/993/916/016/00/screenshot_original.jpg
The plasma plant delivered me a vamp gnome. I forgot that they turn teddies and did wonder for while what happened to my imaginary friend bear. Now I have two vamps.
Haven't managed to find a caveman gnome yet but am meeting a lot of neighbours due to late night drilling. I put out a buffet table now and make it a social event :)