LittleDog has loads 
He has cotton or flannel pyjamas for when it's cold at night- he sleeps in bed with me but still needs them. He also has some fleecy ones for when it's really cold.
He has some animal onesies - bumblebee, ladybird, frog (on my profile), cow, pig, lamb, bear, rabbit, and giraffe. He also has a very fetching bright pink velour 70's style track suit.
Mostly he wears onesies from an eBay seller 'hellokittycomeon', who sells gorgeous ones that look like dungerees with a top.
He's also got a few coats, including a flying jacket which looks great with his Doggles, and Father Christmas and an elf suit for Christmas Eve/Day.
It's not as bad as it sounds, he's half Yorkie, half Chinese Crested, we think. Nobody really knows, but he's rather deficient in fur so it would make sense. Being very small and half naked means he finds it v hard to keep warm, so I get to indulge in dressing him.