You *might* find something here: https://store.nintendo.com/ng3/browse/subcategory.jsp?categoryId=cat870406
Edit: On further looking, they've got Gamecube, 3DS, Wii, Wii U, S/NES Classic, but no gameboy stuff...
Yeah, grabbed a bootleg on eBay for 3 dollars. There's no way to find this pre-owned without a console here in Europe.