Made to slip onto a standard sized belt, but any size belt is easily accomodated by editing the scad file which is dead simple.
Just requires some red paint for
...さらに表示 the center part (or, I suppose, you could print it in red and paint the rest in silver/gold/whatever).
Also designed to be quick to print. You can printed the halved model in pairs completely hollow. Then the valleys around the width of the bomb shell are made for popping in a rubber band to hold the two halves together.
Beret, mime makeup, and french accent not included.