Last year my oldest wanted to be a bat. However, I wanted more of a cuddly woodland theme so I brainwashed him into being a fox instead. I promised him that the next year he could be a bat and even though he loved being a fox, he never forgot my promise. All year he would talk about how he was going to be a bat and fell more and more in love with the idea the more he learned about these winged creatures. For his birthday I got him a book called, Bats at the Beach, by Brian Lies and that sealed the deal. Mason was especially fond of Little Brown Bats so there was no way around being brown. Also, as a last minute birthday present, I made him a little bat stuffed animal and my son couldn't wait to be dressed in a matching costume. The only problem was, the light brown flannel that I used for the stuffed animal's wings was not being sold anywhere so we had to dye our own for a look-a-like finish. My son got a kick out of the whole process, and even though he is now mistaken for a bear of a kangaroo, etc, he couldn't be more pleased with his costume!