Take an ice cream tub for fishing container. Cut out a hole at least 3 inches in diameter at the center of the container's lid.
Paint the outside of the container with white acrylic paint. Once the layer of white paint dries, paint the container with various colors paints and any theme design you like.
Cut out several 1-inch squares shapes from construction papers. Write a letter on each paper square or fish using colored markers.
Attach a paper clip to each paper square. Once the paint dries on your container, place all the paper squares inside.
Cut string to a length of about 1½ to 2 feet. Tape one end of the string to a small magnet. Tie the opposite end to the tip of a drinking straw. Finally, use the fishing rod to catch alphabet letters inside the container.