10. Diamond Wainscot
The inspiration: Leftover MDF scraps
The project: Determined DIYer Roy Shore plowed through a redo of his family's house, in Marietta, Georgia, only to be stymied by a hall where he had ripped out a closet, exposing a wall wrapped around a chase near stairs. Then his eyes fell on a pile of leftover 1-inch medium-density fiberboard, and a diamond wainscot sprang to mind. "I went upstairs with a miter saw and laid the MDF out on the wall, and it started taking on its own little shape," he says.
The payoff: An elegant solution, with bonus points for repurposing