I've attached a few photos of models I've built for the Plantraco 'Butterfly' micro gear. They both fly extremely well for around 5 minutes on the one 30 mAh LiPo cell. They both weigh around 4g. The 'vintage' one is particularly nice any flies very slowly. I'm about to build a biplane for the same gear. It's the best fun I've had for a while.