Watched this video and the people in it figured out the perfect solution for displaying Game Boy and N64 games. Basically, you use nail polish displays.
https://www.youtube.com/watch?v=oreOa_rIUj0
Nail Polish display 1: https://www.amazon.com/Sodynee%C2%AE-Polish-Table-Display-Bottles/dp/B00PAXNYKA/ref=pd_rhf_gw_p_img_1?ie=UTF8&psc=1&refRID=8Q5FF15Y6XN5P85R3N5D
Nail Polish Display 2: https://www.amazon.com/Polish-Table-Rack-Display-Bottles/dp/B01DJFM38Y/ref=pd_rhf_gw_p_img_2?ie=UTF8&psc=1&refRID=QCB35MQ1YBMZ8WBJSMJV
If you find any others for cheaper, post below.
https://www.youtube.com/watch?v=oreOa_rIUj0
Nail Polish display 1: https://www.amazon.com/Sodynee%C2%AE-Polish-Table-Display-Bottles/dp/B00PAXNYKA/ref=pd_rhf_gw_p_img_1?ie=UTF8&psc=1&refRID=8Q5FF15Y6XN5P85R3N5D
Nail Polish Display 2: https://www.amazon.com/Polish-Table-Rack-Display-Bottles/dp/B01DJFM38Y/ref=pd_rhf_gw_p_img_2?ie=UTF8&psc=1&refRID=QCB35MQ1YBMZ8WBJSMJV
If you find any others for cheaper, post below.