To Key or not to to Key

I have been trying to think of new ways to use the alcohol inks. I suppose this could be construed to a bit of sibling rivalry.  I really liked what Judy did with the napkin rings. Anyway, my idea was  bookmarks.  I think they turned out kinda cute.  

Sunday night I color a half of sheet of shrinky dink.  I was going to make a key chain, but the shape kind of lends its self to another bookmark.