What do you have in mind for the style and theme of the t-shirt?
I have a clear idea.
I wish a T-shirt revolving around the phrase "Captain Crabs is finding Neymo"
followed by "Neymo" changing to become "MONEY" to finally reveal a green ticket in a crab claw.
You will find enclosed a draft. I do not want a better reproduction of it but I think it can still serve as inspiration.
As said before the indispensable elements are the phrase "captain crabs is finding Neymo" and the green ticket in a crab claw. I expect dynamism on the part of the alteration of "Neymo" in "Money" and in general colors referring to the aquatic world.