Toddler BrickJellyfish are fun. They look beautiful, floating in the water with their tentacles. Now you can create your own jellyfish out of LEGO Duplo bricks with this video. Create an underwater scene with a school of jellyfish. Or play with you jellyfish in the pool or bathtub. Make this jellyfish with a rounded brick at the top and use smaller bricks to create the tentacles of this LEGO Duplo sea creature. You’ll need 12 bricks to make this jellyfish creature. 6 2×1 bricks, 3 2×2 bricks, 1 2×8 brick, one brick with 2 rounded edges, and one long flat brick.