This has come up in other threads but I thought I'd put all the information in one place for easy access.
Feel free to add anything and if you make one let everyone know how it worked out.
How to guide for materials and setting up a Raspberry Pi
http://gizmodo.com/how-to-build-your-own-mini-snes-1790156604
Another guide if you don't like the first
One-upping the NES Classic Edition with the Raspberry Pi 3 and RetroPie
Link to buy kit with everything you need to make this project a reality
View: https://www.amazon.ca/gp/aw/d/B01CCF6V3A/ref=mp_s_a_1_1?ie=UTF8&qid=1484966553&sr=1-1&pi=AC_SX236_SY340_QL65&keywords=raspberry+pi+3&dpPl=1&dpID=61LxoDAa3PL&ref=plSrch
USB controller link
View: https://www.amazon.ca/gp/aw/s/ref=is_s_ss_i_0_9_aps?k=usb+controller&rh=i%3Aaps&sprefix=usb+contr
Esty cool handmade / 3D printed case link
Raspberry pi case | Etsy
Raspberry Pi home website
Raspberry Pi - Teach, Learn, and Make with Raspberry Pi
Sample builds
Small Arcade Cabinet
Cement Thwomp Pi build with video
Portable Build
Feel free to add anything and if you make one let everyone know how it worked out.
How to guide for materials and setting up a Raspberry Pi
http://gizmodo.com/how-to-build-your-own-mini-snes-1790156604
Another guide if you don't like the first
One-upping the NES Classic Edition with the Raspberry Pi 3 and RetroPie
Link to buy kit with everything you need to make this project a reality
View: https://www.amazon.ca/gp/aw/d/B01CCF6V3A/ref=mp_s_a_1_1?ie=UTF8&qid=1484966553&sr=1-1&pi=AC_SX236_SY340_QL65&keywords=raspberry+pi+3&dpPl=1&dpID=61LxoDAa3PL&ref=plSrch
USB controller link
View: https://www.amazon.ca/gp/aw/s/ref=is_s_ss_i_0_9_aps?k=usb+controller&rh=i%3Aaps&sprefix=usb+contr
Esty cool handmade / 3D printed case link
Raspberry pi case | Etsy
Raspberry Pi home website
Raspberry Pi - Teach, Learn, and Make with Raspberry Pi
Sample builds
Small Arcade Cabinet
Cement Thwomp Pi build with video
Portable Build