Find great deals on ebay for pedal boat in more water sports kayaking, canoeing & rafting. shop with confidence.. Free pontoon boat plans. well look what we have cooking here: free plans to make your own pontoon boat! length: 12′ (3.7 m). The 18’6" x 6′ escargot is a pedal-powered boat designed by phil thiel. i absolutely love the idea of this small, easy-to-build shanty boat as a house. the.