Did a mash-up between a Squishy Turtle and The Flash coaster that I had done before (included pre-mashup photo).

Turned out ok, though the ends of the lightning bolt in the logo are too fine for my 0.4mm nozzle. :-(

Yellow logo inserts into the hole in the shell-- takes some effort though-- will try to tweak it further.

Print in opposite colors for 'Reverse Flash Turtle' !