Get a tiny monster to grapple them, like a regular scorpion or something. Then point to the grappling rules that its legit.
Little squirrel Luchadors in tiny gold masks and underoos? With capes?! Awesome.I love this a lot. Nothing more embarrassing than losing a wrestling match to a squirrel.
My forest gnome never gets a horse, he just rides with someone else. He can hide more easily. And he can be thrown over walls if needed.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.