The first weirdest in invention is mouth spray that instantly makes you drunk, who would want something that makes you drunk?
The second weirdest invention is a vibrating tattoo that only vibrates when you have a new message, a phone call, and an email. I think its weird because what if the tattoo hurts when it vibrates and you cant take it off.
The third weirdest a refrigerator that only opens if you smile at it, this one is weird because what if your crying and you want something to drink and you cant smile.