Someone posted about the little knife awhile back but I've never seen a tiny rotary cutter like that! I googled them and found them at Nancy's, Amazon, and other places. They're billed as crafter tools for scrapbooking etc. I didn't see any info on whether you can get extra blades for the rotary cutter or even if they're replaceable. But they sure are neat!! I think the post I saw was about using the knife for cutting quilting stencils. I'm a gadget nut and will have to put these on the list to get!