Popular Mechanics’ first-ever DIY Rally turned some of our brightest readers into PM contributors by showcasing their ingenuity in the pages of our July issue, out on newsstands now. Check out these six of videos of the contraptions at work.Robert Lange Robert Lange weaves through the trees in his mean, clean racing machine:Sideways Bike Michael Killian carves up a public park on his unusually oriented bike while onlookers stare on: Pedal Air Gun Bill Llewellin’s human-powered spud launcher punches through a board:Self-Tending BBQ Oven Nathan Moore explains the merits of his controlled outdoor cooker: Biodiesel Motorcycle David Hubber fires up his veggie-fueled BMW: Monowheel David Southall zips by on his precariously balanced one-wheeled vehicle: Multimachine Pat Delaney demonstrates the varied capabilities of his all-in-one machine shop:Plans for the multimachine may be downloaded directly from Popular Mechanics, although we strongly recommend visiting Delaney’s Yahoo group for additional information. Waterbike James Garlitz flies above the water’s surface: Propeller Bike Damon Vander Lind’s propeller bike gets stares–and lots of offers to buy:
