LEDs and Lighting Class
Wearable Electronics Class
Beginner 3D Printing Class
If you mean the design - yes. The GBA is completely different in measurements and size so look for an appropriate guide specificly GBA it you want to modify one of those.
Building IllyClock - Arduino-based alarm clock in a coffee can
Music Playing Alarm Clock
how to case mod an Xbox 360 for dummies
$5 Mini USB Fridge!
LED Mod Your Gameboy Color
Retro All-In-One Gaming Console
Custom N64 Iron Man