You can get steel loom clamps with rubber cushions in various sizes for about a buck at Home Depot.
http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053
Jandd claims to have stainless clamps, but if you order, you get the same loom clamps as above instead of the ones pictured, at a much steeper $4 plus hefty shipping. I suspect they're not stainless, either.
http://www.jandd.com/detail.asp?PRODUCT_ID=FCLAMP