I'll check wally world here for those clamps. I haven't seen them there before. I did buy a tube from Northern tool here and several were broken off the bat.
The Harborfreight tube of them is a little more $ but thicker plastic. this stuff is available from many different factories in China at different qualities. (I have checked into buying several items)
http://www.harborfreight.com/cpi/cta...temnumber=8826
Also Harbor freight now has an aluminum clamp. IIRC it's $1 or $1.50. It's a deal for an aluminum one. Very nice looking clamps as well.
Here is the 1"
http://www.harborfreightusa.com/usa/...bCategoryName=
and the 2"
http://www.harborfreightusa.com/usa/...bCategoryName=
If the links don't work the item numbers aer 94923 and 94922. go to
www.harborfreightusa.com as the catalog site doesn't list them.
I have lots of little clamps but as a woodworker you can never have too many clamps.