An easy Friday afternoon project for you!
All you need to make a nice "corner cover" bookmark is: one paper bag, one pair of scissors and a book! I always liked the Paper Source bags I get with each purchase and this is a great way to enjoy them once I bring them home. Now, just to be fair, I can't take full credit for this idea. I saw it somewhere, but for the life me cannot remember where. I've been doing so much "research" lately in the area of design that it's all starting to blur together. So, if you happen to see it else where, let me know so that I can rightfully credit from where it came.
PS: It needs to be a bag that does not have a bottom. A simple bag with just two sides. Then just cut the corners of the bottom off how ever you'd like and slip your "corner" onto a page!