The Water Bomb is an item from The Legend of Zelda: Twilight Princess. This specialty bomb retains all of the functionality of the regular Bomb with the added ability of underwater usage. Bomb Fish appear to be the inspiration for the bombs, as they explode if Link hits them with his sword and are similar in appearance.
Although it’s only 2 pages, you will probably need the PDO file to make this craft. The lay-out of the pieces don’t seem to be related to where the pieces actually should go in the craft. Good luck! I think the end result is well worth it!
By Brandon, picture by Dark_Volvagia. Info from Zeldapedia