20 surprising inventions you shouldn't buy

We introduced you lately 21 completely useless inventions that exist and that are downright funny. Today I present to you 20 inventions that you would never have thought of and that you might never buy! I admit that I might buy the little gadget that lets you explode endless bubbles (you know paper with bubbles which is in the boxes when you order a fragile item over the internet). I sincerely hope that I am not tricking you into buying something, I do not want you to spend a bad time!
crazy-japanese-inventions-3 crazy-japanese-inventions-7 crazy-japanese-inventions-9 crazy-japanese-inventions-11 crazy-japanese-inventions-12 crazy-japanese-inventions-13 crazy-japanese-inventions-14 crazy-japanese-inventions-15 crazy-japanese-inventions-16 crazy-japanese-inventions-18 crazy-japanese-inventions-19 crazy-japanese-inventions-20 crazy-japanese-inventions-21 crazy-japanese-inventions-22 images inventions05 inventions09 japanese-inventions-12 weird-inventions-004