I couldn’t find a website selling the pocket blood, but while I was looking, I found the bloody bookmark (click the picture for a link). The bookmark website tells how it is made–liquid silicone is dripped down a piece of sheet metal and allowed to dry.
Being the crafty sort of person that I am, I’m thinking: buy some silicone and make it myself. Of course, I’d want red, but someone on the internet asked for green (slime). This might make good gifts for my (and your) more… um… unique friends and family members.
Speaking of “unique,” have you ever been to the ThinkGeek store? I’ve heard of them before, but I don’t know why I’ve never shopped there. So much stuff to add to my wish list!