Lately I've gotten a few from Quilter's Rule (mostly Ronda's but they have other ones). I also have some of the ones from Handiquilter that are smaller that I got pretty soon after getting my Sweet Sixteen.
I did look at the ones from Quilted Pineapple but found more at QR to offset the shipping. Just got the QRs last week and haven't had a chance to play with them yet. Got to get all the kiddos back to school!