When I build a Gameboy for someone, I like to flash a bootleg GBA cart filled with Gameboy+Color games so they have something to play immediately. I designed this cart label and will be ordering a sheet of them from StickerYou.com soon. Went with pastel colors.
Built my Boxy Pixel SP today. 900mAh Li-Po battery, V5 IPS screen kit, USB C charging port on the left side, aluminum shell and buttons. My gold triggers come soon. Had custom laser etching done in 3 spots.
I ordered a black aluminum cartridge shell from Boxy Pixel, and a couple of custom labels off Etsy to build my ultimate Zelda DX cartridge. It has an FRAM chip installed so it can save your game progress without the need for a save battery.
I'm designing a new slide-on shell solution for the official GBA Wireless device. If it turns out to be a good snug fit, I'll sell 'em. Mine are just 10mm thick. It also has a slot for the antenna portion of the PCB to stick out of.
At the end of the concert she rips the foam rubber part of the microphone off and throws it into the crowd a lucky fan snatches it starts sniffing it vigorously!