I prefer mine to be more Tolkinesque only because Tolkien was my first and only inspiration for small peoples until Dragonlance came along. Kender are great for fictional characters but a pain for a GM if role played correctly IMHO. I have no experience with Dark Sun and my experiences with them for 3.x makes them too munchkiney for my tastes. I've yet to see them portrayed as Mckiernans Waerlinga, except perhaps as the wandering gypsy type hafling.
If they have the handle-bar ears, they must have a flattened skull on top for my stein.