The fantastic betting game: Liar's Dice, Bluff, Perudo, Dudo - as seen in the film 'Pirates of the Caribbean'.

Create a travel set for as many players as you want! Simply fill one cup with all the dice, stack other cups and caps atop, and put a rubber band around.
I have Six-players pictured above, which is probably the maximum for standard sized dice.

Optionally - you can felt the top/bottom for a nicer sound.

You can print out the rules there at 8cm (~3in), and carry it comfortably in one of the caps.