Make Dad feel like a boy again with the gift of a goldfish. For $23.99, you can get him a midsize red and white Ryukin goldfish from PETCO. Or fill a whole tank with 17 little guppies for less than $25. You can order the fish online, but shipping fish sounds complicated and soggy, and it’s not cheap either. However you get the fish, make sure Dad remembers what happens if he carries it around with him in a plastic bag for too long.