The Nintendo Entertainment System may have popularized the cross-shaped d-pad, but it didn't usher in a new wave of controller comfort. This lovely looking NES mouse, sadly just a foam sculpted mock-up, looks accurately uncomfortable.
Nintendo did get around to offering a mouse with the Super NES, but it wasn't as easy on the eyes as this little guy. Maybe someone (stares at Think Geek) will get around to making a fully-functional version. For comforts sake, we'd also suggest whipping up a NES redesign "dog bone" edition. That thing was like holding onto a little plastic cloud. So comfy!