Make a "laser grid" obstacle course with yarn

The Inspirations 4 Your Life tumblr had a great suggestion for entertaining your kids: "Make a 'laser grid' by taping yarn to the walls and let your kids try to get though it. Also great for parties and laughing at your friends. I mean really, who doesn’t see those lasers on TV and think it would be fun to try..."

Make a “laser grid" by taping yarn to the walls... (via Mary Robinette Kowal)