This funky-looking laptop desk doubles as a portfolio-style case, and has gotten a surprising amount of use around the office, thanks to its most important feature: a stiff pull-out mouse pad. Blackfly refers to it as a "retractable wing," and it's big enough to use for couch-based gaming.
The case is designed for 15-inch laptops, at least if you want to close the case and carry your laptop around with the included shoulder strap. We ended up using it mostly for larger 17-inch gaming laptops on an ottoman, forgoing the attempt to zip up the case around the too-large laptop. $80