Why?
Does not MB have enough toys?
Geez.
It looks really good on its baseline.
Do not fall into the new collector "playfield garbage mod" trap.
Sometimes a few tasteful mods look great but a playfield full of plastic toys is what it sounds like.
Maybe some new speakers, a color DMD, or PinSound board.
Be unique, build or design your OWN topper.
These add to the quality of YOUR machine.
Be creative, don't copy others ideas.