Sig is petting a big 'ol stuffed elephant dingaling in this particular picture. He has "261 preserved members from 90 species". Wow...weird collector's item there, no? He's been collecting penises for 24 years now.
The largest "member" on display is that of a sperm whale (154 lbs) and the smallest is from a hamster (2 mm).
Apparently, Sig is still on the lookout for a particular "member"...that of the homo sapien. So, step right up gentlemen, and donate your organ to science!