Just dropping in to show off my latest obsession... Target Dollar Spot Magazine Holders! They are cardboard, but they seems very sturdy, and the designs are adorable. There is even a grey design for the boys. I bought 5 today for myself, but I think I will go back tomorrow and gather more for my students for next year.
A sweet fan on my Facebook page (are you following?!) suggested reinforcing the bottoms with packing tape, and I love that idea. Go grab some! Every teacher loves these things, right?