There were 154 approved hunts of which these 5 are awesome, I think. Which one do you like the most?
Bisecu Smart Bike Lock
A smart bike lock that is connected with your phone through bluetooth.
Smart Plug
Controls your all home appliances.
Levimoon
Wireless, floating levitating light.
PocketPower
Pocket solar charger.
Mr. ESP
Device for meditation and to control objects with your brainwaves.