Painfully adorable: Lord Fuzzums the Third, Cuddles McSofty, or anything else that depicts it as soft and cuddly
Puns: Wet, Aqua, anything pertaining to water , Mr. E (Mystery), Ms. Ery (Misery), nograd (I would pronounce NOG-rad),
Mythical: Bahamut, Tiamat, Jörmungandr, Fafnir, Leviathan...