Picnik is really fun. It would be fun to display posters and flyers in the library. Kids would get a kick out of seeing a photo of themselves at a program that is all doctored up.
As for using Picnik with customers, I don't know how much we would use it in the children's area. They may enjoy using Picnik themselves, if online games do not take priority.
I thought it was really cool to see the photo from different angles.
Picnik would be a lot of fun to use to manipulate photos for a family photo card!