I sewed the body suits, loin cloths, and tails. We sponge painted them to make them stripey, then used hemp, feathers, and beads to make the other accessories for the costume.
We also painted our eyelids so that when our eyes were closed they looked like the big, round, yellow Avatar eyes but I didn't get a good picture of that... Oh yeah, we also used a ton of blue body paint!
We saw someone who got a store-bought costume but I think ours were better. I think handmade is always better...
My fiance was Wilson from Home Improvement