Tide the Fish is designed to allow you to have fun with printing in multiple colors. There is no infill needed and it prints easily without supports. It is optimize to print on a MakerBot Replicator 2 Desktop 3D Printer.
I have included X3G, STL, and 123D Design files. You can print half a fish that shows off the interior structure or a full fish that provides an interesting interior look if you use a translucent filament.
Filament Swapping on a MakerBot Replicator 2 Desktop 3D Printer:
During a print, press the left arrow key (back button) to bring up the menu. Select Change Filament and proceed to Unload and Load your new filament color. Once loaded, press the left arrow key (back button) and select Resume print.