I have a project to create a model of a NASA spinoff. I created one model but the teacher gave me a "D" because she said it did not take me a lot of time to create it. I have the opportunity to create a new model. Please tell me a NASA spinoff that I can create a model of. I can't use these spinoffs: Satellite dish, ear thermometer, cordless vacuum cleaner, fire alarm, fire fighters gear. So please tell me spinoffs other than those.