Here's my Ikea Expedit-hack entertainment center / display shelf. It was assembled from a 1x5 unit, a 2x4 unit with some pieces removed and shuffled around, a bunch of brackets, dowels, drilling, and profanity. Elevated it slightly off the carpet by using metal screw-in doorstops as legs, and ran LED strip lighting along the back of the central beam to give it a subtle backlighting effect. Expedits are discontinued at this point, but one could likely cobble together something similar using the replacement Kallax shelving. Only three robots on it at the moment (Masterpiece Soundwave's hidden down bottom, blocked by the coffee table), but I try to keep the living room fairly uncluttered, as toys everywhere would likely cause the Mrs. to eventually murder me. Being dead would make future collecting rather difficult. Super fun project, and gave us the confidence to try more complicated stuff, like our dining room table built out of piping and reclaimed lumber.