Goalies are known for customizing their uniforms with funky patterns, airbrush art, or anything to make them look more threatening. One goalie, however, realized the folly in that plan, and designed camouflage pads - the outer surface of the pad is stitched and colored to resemble the net and the empty space behind it, so that forwards with a fraction of a second to shoot might see it as a window to a score. It seems so obvious, it sounds like it'd be successful, it doesn't require rule changes for the sport, all of which add up to a very good idea.