DIY Under the Sea Costumes: Fish! Great photo idea for under the sea week!
Easy DIY Scuba Diver Halloween Costume for kids!
Halloween costumes for girls - DIY Octopus Costume - Giggles Galore
Awesome DIY Costume for Two Girls: Two Sea Stars .
Grab your besties + get ready to spend a night under the sea with these 3 DIY jellyfish Halloween costumes.
Finding Nemo among the sea anemones What a creative costume. Instead of using balloons you might be able to use cut pool noodles. Just a thought.