This is a B&M clearance item. None available online. I found one at my local Staples and called the other nearby store, but they had none. The price was $13.50! So it's catch-as-catch-can... If you don't need some yourself, they are easy to move on eBay at a tidy profit. I did a froogle for it and got very few hits at about $40. Good luck!
.bh.
.bh.
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