New life for IKEA furniture from SUPERFRONT. To Australia they only ship handles and legs. Otherwise they provide possibilities for upgrading your Ikea furniture with cabinet fronts for a custom "Ikea hack" look.
the cabinet-turned mural: There's your typical storage, and then there's this. Stack two sets of a pair of Ivar cabinets side by side, and paint a mural of your choosing or cover with a graphic wallpaper.
With its adjustable shelves, the IKEA Mandal headboard is already fairly adaptable, but have you thought of using it in ways other than a headboard? These folks did; perhaps it will inspire you to look at the Mandal with new eyes of possibility.