My kids in their halloween costumes. I made Kaya's costume - the armor, crown, belt, etc. were all made with zbrush/Maya and printed with my makerbot Replicator and then painted. I sewed the dress and the darker pink bit using modified patterns, and the center sash was designed in photoshop and I had it printed through www.spoonflower.com.
Vincent's costume was quite a bit simpler. White turtleneck shirt. White pants. Green shirt two sizes too big. Add belts. I bought two of the shirts and cut the 2nd one up to make the hat so the material would match.