Something I made over the past summer:
This Nintendo 64 Portable took me 10 days and over 200 hours of work. It features a full sized N64 which has been stripped down and wired to fit into a 3D printed case. The console runs on 4 18650s batteries and lasts for about 2 hours per charge. The system includes: A controllable volume knob, stereo sound, a 3.5 mm Headphone jack, conveniently placed buttons to change the display settings and a controller like case for easy handling. Every part of the case besides the circuit board, speakers, tact switches, and LCD screen were 3D printed.