Game room -- game boards that you could take off the wall and actually use. Pinner used monopoly which are inches. Paint a canvas black, glue board to canvas and install a do it yourself fame, (got from Michaels to fit the 20 inch canvas).
IKEA picture frame hanging hack from A View Along the Way. Amazing FREE trick for hanging picture frames in a grid, with no more frustration. Would work on any other frame with a wire across the back too.