Fibonacci Agile Scrum Dice

Ever had a hard time estimating the size of an agile scrum story? This thing solves that problem, just roll this fibonacci dice - a six sided dice enumerated with 1, 2, 3, 5, 8, and 13 pips (the fibonacci series - okay, without the repeated ones).

This is a parameterized OpenSCAD model; easily change the size (40 mm here), pip size and pip spacing.