This ‘Nanocade’ project not only condenses an arcade into a portable version, but it also puts an old laptop to good use. Essentially, it’s a $350 DIY kit that lets you build a micro MAME cabinet out of acrylic sheets:
If you follow the seven pages on its design and construction you can probably build one of your own. It’s designed to hold a netbook (or a mini-ITX motherboard) and 10.1-inch display. Now you can have hours of nostalgic fun in portable form!