easywrappe corner clamp source

[mstevensphoto]

I seem to have lost one of my red corner clamps for the easywrappe/ simply elegant system. I see the 1.25" on amazon but not the 1.75". BC has them for $15 +!5.95 shipping (we sell them at cost but then bend you over on shipping!) and IT Supplies has em for $27 - I need one plastic corner and really don't want to pay $30 for it. can they be ordered somewhere cheaply?