Some of the pages I've contributed to significantly are:
Acetylene Actaeon Amino acid Anthropomorphism Callisto Carbon chauvinism Charybdis Clanking replicator Circe Cruithne Daedalus Dyson sphere Edmonton Freenet Genetic code Greek mythology Grue Jack L. Chalker Lycanthropy Mendelian inheritance Muppet Nagasaki Neoteny Pan RNA Sampo Scylla Sidehill Gouger Solar system (and practically all of the planets, moons, comets - whew!) Victor Von Doom Werewolf
"Discussion board" section of my homearticle:
Allrighty, I was just momentarily overcome by the fun of putting exotic characters into pages. :)