Arachnaman was a short-lived gimmick in WCW. I believe they got sued by Marvel and dropped it. But you're right, the Godwins, Viscera, Doink, Nailz... there's easily enough material for a second quiz. I just might make one!
I'll politely agree to disagree with you on the Spirit Squad. I have to say I'm not surprised that none of those guys got over with that gimmick. If I remember, the breakout star was supposed to be Kenny, but then DX buried the whole lot of them.
Some additions?
Two pig farmer cousins
The worlds largest love machine
A clown
A prisoner in orange prison wear
I loved the 90s :)