I designed this based loosely on my understanding of a basic Katana. A friend of mine asked if I could make a sword hilt that you could screw a pool noodle onto so his kids could play swords. He had seen something similar at a retail store, but didn't really like the design and asked if I could make something a bit cooler and more realistic. Here is my attempt at a Katana. It is designed to be printed with no supports, and glued together for added strength. The fit is quite snug, and may require some tweaking depending on the accuracy of your printer.