After printing a new version of the mystery tiles that used the “?” from Mario Bros, I had the idea of designing this shell that is sure to bring some chaos to your games! 

Like in Mario Kart, the blue shell is meant to create some chaos right before the finish line.

It can be played only on the tile slot closest to the finish line and will destroy all adjacent tiles. I'm working on adding a rule tile to the model.

To save on filament, the model comes in multiple parts that you have to glue together—you can obviously assemble them in your slicer and print them in a single session but that's likely going to be extremely wasteful.