This remix takes the "artichoke" lamp shade and scales it to fit both the Prusa Mk3 bed AND a standard A19 light bulb. It is roughly 210mm x 210mm x 200mm (so maybe it will even fit on a Mk2s). And it will hold a bulb with up to 75mm diameter.
This involved cutting out the innermost set of leaves. But it still keeps the overall look.
I suggest printing with a nice brim.