E.P.
We did a Hawaiian theme and created a fishing game, using these colorful goldfish. I bought these fish, added a little washer, to the fish (just slipped it through the tail - bought the washers from a hardware store), and created fishing poles using a 1" horseshoe magnet (also found at Oriental Trading) jute or firmer yarn and chopsticks (be careful that you don't twist the chopstick ropes) Oriental trading has soooo many cool fish/ocean items. They even have ring lollipops, shaped like fish.
Kids loved the game - about 6 kids can fish at one time, maybe more depending on the size of your bowl/container, etc...It can be a race, it can be "find the special one" it can be teamwork, etc....
Fish wind socks are fun and easy to make, necklaces, gluing small pearls and shells to picture frames. All these are easy crafts.
Also, I made orange fish jello jigglers then made light blue jello, filled 1/2 of my clear cup, w/ jello, let it congeal, added one jello jiggler, then filled the rest of the cup with jello.
Swedish fish are cool as are the little fish crackers - but look for the package where they have the colorful fish crackers. Very pretty.
Have fun.