Helen Dardik of Orange You Lucky designed and offered these bookplates as a token of appreciation for her blog readers. Cute internet stuff is always better when it's free, right?
Helen mentions that she likes to use these in her "ever growing collection of unique and interesting vintage books." I like putting them inside children's books that we receive as gifts, so we can add the giver's name and date. It's just a nice reminder each time you read those books. These are especially good because they have that second line for extra writing room.