We searched for several ways to make unique corner bookmarks so that you may take your pick:

#1 Kitten Origami Bookmarkvia (howaboutorange)

#2 Heart Shaped Origami Bookmark

via (thecheesethief)

#3 Bunny Origami Bookmark            via(thatswhatwesaid)

#4 Origami Bookmark with a Greeting Card
                 via (hollyrocksjewelry)

#5 Monster Origami Bookmark – All you need is an envelope!                         via (tallystreasury)