Re: Necessity is the mother of invention. Home › Forum › Ask A Member › Necessity is the mother of invention. › Re: Necessity is the mother of invention. 49hiawathaReplies: 265Topics: 25 July 5, 2018 at 12:52 pm #79063 I did something similar years ado with a homemade fiberglass/ribbed/cloth duck boat. Used C-Clamps to hold together on H2O. Sorry no pics..used 1,5 Gale motors.