http://www.cracked.com/article_15693_the-10-most-ridiculous-inventions-ever-patented.html
http://www.freepatentsonline.com/crazy.html
https://www.google.com/patents/US6293874
https://www.google.com/patents/US6368227
http://www.businessinsider.com/the-15-funniest-patents-ever-issued-2011-3?op=1/#giant-pyramid-shaped-tomb-thats-right-someone-patented-one-of-the-seven-world-wonders-12
https://www.google.com/patents/USD539422?dq=thong+diaper
https://www.google.com/patents/US6784792
https://www.google.com/patents/US5719655
https://www.google.com/patents/US5443036
https://www.google.ca/patents/US4455816?dq=pedal+operated+mower&hl=en&sa=X&ved=0ahUKEwi_qPSB-M_TAhVr04MKHfx1Cb8Q6AEIIzAA
http://www.freepatentsonline.com/4455816.html
https://www.google.com/patents/US6360693
http://www.flat-d.com/
https://www.amazon.com/Flat-D-Flatulence-Deodorizer-Reuseable-Underpads/product-reviews/B004YLFN3A