haha, gotta love the KIDS as only a parent could ... LOL, you NEED a product tested then there's the answer, when you can proudly LABEL your product "KID approved, KID tested and KID proven durable" you would know you had a winner [hr]
Lol. I give my kid the little air hog micro copters flys good and stable and takes a beating. For $20 hes learnig basics up down left right. Taped as weight to lean it forward. He does surprisingly well for 3 will not hesitate when hes older to buy him a blade.