Help forcing 1 to 6 order

[Ithandil]

Hi guys,

I'm developing a Magic routine and I need some advice.
At some step, I need to force a 1 to 6 order depending on the spectators' previous actions.

Right now I'm thinking about using that "magic dice" whose value can be set every time is thrown.
Do you think it's a good idea or can someone point me to a better solution?

Thanks