I have been in your shoes, I pondered on where and how to donate my items. I got a box and put the rulers, rotary cutters, and anything else quilt related. I put it in the car and donated it to my local thrift store. I have no idea what they did with it nor do I care, it's out of my house. My goal was met and I feel good about the extra space I now have. You just have to let it go, you don't want it, don't waste your time fretting about where it ends up.