Description: It is always fun to create and 3d print toys that are easy to assemble, safe and use common items found at home. The added advantage of creating modular toys is that, given the print time, it is always a pleasant experience for kids to adaptively create different variations of a toy that uses the base design. With this in mind, the design of a modular power water boat is created. The boat uses steam and air to power it when placed in water. The design incorporates snap-fit parts to change the type of water boat for kids or adults to play with. The water boat design has three variations, the standard pop-pop speedboat which is powered by steam, the pop-pop trimaran speedboat which adds more stability and a more impressive water boat design and the final design is of an air powered boat by a balloon.