Anyone got any fishy ideas?

My friends are throwing a “fish party” to celebrate them getting a saltwater fish tank in their house…. basically a housewarming party for their saltwater fish. They’re serving sushi, decorating the house in an “under the sea” theme, and Finding Nemo will be playing for the little ones, followed by The Little Mermaid. The host and hostess will also be making blue jell-o shots with mini Swedish fish at the bottom.

My question is, does anyone have any ideas for what I can bring? I was thinking something with those goldfish crackers, but that’s so lame. Maybe fish shaped sugar cookies? Any ideas?