Amazing DIY hack Flying Butterfly, How to make a butterfly robot run on a rubber band

Hello friends! Today we take a look: “How to make a butterfly robot run on a rubber band, fly extremely long and beautiful“. No motor or any engine is needed, but we can still make a butterfly robot that can fly extremely fast, long and beautiful. That’s great, isn’t it! It can be a best gift for Valentine’s day or Birthday day.... Please subscribe to my channel to support me. Thank you for watching!