The Lack red wall shelf from Ikea offers a fun way to create space for books or other display items. First of all, red is a great color in the right setting. Imagine this sprucing up a teenager’s room, a dorm room, or the wall of a contemporary apartment. The zig-zag pattern gives it extra design muscle and a bit of difference from the more traditional wall shelf shape. Lack comes in red or white and features concealed mounting brackets. Dimensions (l x w): 51 1/8″ x 10 Â¼”. Price: $29.