So here's mine. I like platypi

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Platypus (Tiny Animal)
HD: 1/2d8 (2 hp)
Initiative: +2 (DEX)
Speed: 5 ft, swim 10 ft, dig 5 ft
AC: 14 (+2 size, +2 DEX)
Attacks: 2 claws +4 melee
Damage: 1d2-4
Face/Reach: 2.5 ft by 2.5 ft/0 ft
Special Attacks: Rake 1d3-4, Poison
Special Qualities: Blindsight 5 ft (in water only)
Saves: Fort +2, Ref +4, Will +1
Ability Scores: STR 3, DEX 15, CON 10, INT 1, WIS 12, CHA 7
Skills: Swim +10, Hide +10, Spot +8
Feats: Run
Organization: Solitary or Clutch (2-5)
CR: 1/4
Treasure: None
Alignment: Always Neutral
Advancement: None
Rake (Ex): A platypus that successfully hits with both claws can make a rake attack with its hind legs for 1d3-4 damage each.
Poison (Ex): A platypus that successfully rakes an opponent poisons the opponent. The save is DC 11; the poison does 2 DEX primary and 2 STR secondary. Against creatures one size larger or less, it also does 1d6 secondary damage.