Detolf shelf + lighting kit + niubee acrylic risers. Leaves room for exactly 80 amiibo, which just happens to be the full smash ultimate roster minus P2 variations. : r/amiibo
Laser cut shelves and brackets for the IKEA Detolf Cabinet, 3 shelf pack | eBay
Shelf Brackets for IKEA Detolf Add Extra Shelves 2 Pack Deal for sale online | eBay