OK, I have Rhino 5 and am considering buying moi3d but I was waiting for the version 4, returning to your problem can be solved in a few steps, for playing dice you must create a sphere and a cube and use the intersection between the two objects. While the chips are simple extruded curves, you must use the draw curve and then freeform spline and create closed shapes.

http://www.k4icy.com/tutorials.html



But you have to remember that you don't have the sphere primitives, so you'll have to create an arc command, then use the 4 revolution, while for the cube a square extruded

video tutorial on rhino for the dice
https://www.youtube.com/watch?v=gb4gIPbwWk0