Several weeks ago I was browsing ebay and happened upon an auction for a very cheap blind bag Princess Cadence/Cadance. I had an inkling of an idea for customizing a blind bag Princess Luna so I put a very small bid on it and won. She shipped from China and relaxed around the house for a while before I had the guts to attempt customizing her.
Say hello to Princess Luna!
I kept her hair closer to the first season version as it fit the Cadence/Cadance mold better, and I personally like the blue hair better. I know I have seen other artists do amazing work with a "canvas" as small as the blind bag ponies, but I am very proud of myself for this one.
Who knows, maybe if I can find another cheap Cadence body I'll do a second season version of Luna. I wonder how glitter paint would work for the hair...
Edit to add that Princess Luna was featured on Equestria Daily! You can see her and a lot of other cool custom ponies here.