Perhaps this puffer could equip a racket and fur armguards and depart on a grand adventure. Or perhaps it's just a fish.
[Suitable for printing on small canvases.]
Though this fish supposedly resembles a mythological being known as a selkie, few sailors have actually laid eyes upon such a creature. As such, the comparison may be thoroughly inaccurate, provoking the ire of selkies skulking in seaside taverns with every utterance.