Jo Ann's Fabrics has them on sale right now. Twelve pack for $1.49, 2 x 3.5 inches. But shipping is $5.95.
Amazon seems to have some good deals and the one I looked at for $7.05 for 100 is free shipping.
http://www.amazon.com/s/ref=sr...
Kevin where do you get yours from? And what size do you use?