Old school Note Cards

I made these for a swap that didn't happen. I thought I would share them and get some opinions on them. What do you think? I bought a set of note cards at Walmart and then used images from old schools books to decorate the front of each card. Each card measures 4 3/4" x 3 3/4". The backs could be cut off for trading but I don't think it would work to make them into ATC. Some of the images would be lost. Would something like this be saleable(is that a word?) or in other words would you buy something like this? Just wondering!