Side handle for snow shovel

A secondary handle is great for ergonomics when shoveling snow. Or anything else! Also useful for other long handled tools. Inspired by the Stout Backsaver Grip attachment (http://www.backsavergrip.com/, $14), found in a laudatory review at http://thesweethome.com/reviews/best-snow-shovels/. UPDATE: the one I printed snapped fairly quickly. I recommend using the Customizer to increase the wall thickness and printing in ABS. UPDATE: I have reworked the SCAD file to be very slightly more unders