Tell us about yourself!
Build your own Remote control Plane
Building A Computer Desk / DIY Desk PC
DIY Outdoor Water Blob
Temperature alarm and time on a LCD screen with a DS3231, Buzzer and LED
The Universal Multipurpose Workbench
Good news for your dad! These ROMs are completely legal to download and run. Archive.org started hosting them. Check out github's wiki with links to archive.org's download pages: https://github.com/RetroPie/RetroPie-Setup/wiki/Managing-ROMs