What's better than a Super Nintendo? A Super Nintendo arcade! Instructables user Nzen Mods put together a compact machine that even sports the traditional colour scheme.
Although not a beginner's DIY project, creating your own SNES arcade isn't the hardest project you'll come across. The case was made from polycarbonate sheets, which you can do yourself with a dremel or have a plastics store cut for you. Aside from creating the case, everything is mostly just some simple wearing (for the controls) and plugging things into the right places. If you want to make your own, check out the full how-to on Instructables.
Super Nintendo (SNES) Arcade Machine [Instructables]