With a unique item sometimes you have end having to buy.

These are the only other patterns I found that are free. One of them is felted. You'll have to join Ravelry to get them I think. Rav is free.
http://www.ravelry.com/patterns/libr...-seek-yoda-hat
http://www.ravelry.com/patterns/libr...-baby-yoda-hat