I tried. Once. In a dragonlance game.
I even annoyed myself. Never again. Never, ever again.
I'm sure the stats on kender could be found in the Dragonlance Campaign Setting book. As for how to play them/how they differ in 'feel' from your standard halfling rogue... halfling rogues can be any of a wide range of personalties and motivations. Same as any other race, really.
Kender are basically an entire race of ADHD kleptomaniacs with a complete lack of fear. Literally, they have no natural fear reaction, period. And they're insatiably curious. If you've ever seen the old SNL skit with Mike Meyers, the 'hyper-hypo', think like that but with more stealing. Add to the fact that most of the times they don't even know they're stealing things.. it's subconscious.