Man's Best Friend

Julie Guthrie is a better sculptor than me.

Meh.  I've drunk out of worse.

So I went to the trouble of making this dog out of Fimo.  And I figured that maybe an adventurer's best friend deserves better than to be a 25 gp bit of disposable equipment.  Plus this. So here's an NPC class, ala Swords & Wizardry:
Faithful Hound: NPC only, XP and Saves as Fighter, HP and Tracking as Ranger, only surprised on a 1, doubled movement rate, all armor (natural AC 7/13), no shield, no weapons, cannot use magic items.  +1 to hit, damage, and AC per level (the last one only when fighting in a fur coat, i.e. sans armor).  Always does full damage to skeletons, bone devils, etc. because it's funny.  This is a Lassie/Rin Tin Tin type henchdog, so he can pull levers, open unlocked doors, laboriously climb ladders, etc.

It seems a little overpowered, but henchmen are running on half XP.  He can't activate magic items, although if he came across a passive item like a collar of fire resistance, or if someone let him lap a potion out of their helmet, I'd allow it.  There could also be a Paladin's Hound, as an alternative to the Paladin's Mount.