Obviously nothing beats polyhedrals. However, I think I've come up with a way to simulate 10 different die fairly well...with a deck of ONLY 7 cards!

"Impossible!", you say? Have a gander...

Lay the Rotate card down as shown (shuffle on the left side). Collect the other cards and lay them face down on the Rotate card. Take the deck in hand. To get a "die roll", turn the top card over, lay it down face up, and reference the desired die on the side closest to you (the side you can easily read). Repeat as die rolls are needed. When you reach the Rotate card, collect the discarded cards. Turn them face down and lay them on top of the Rotate card. Now rotate the deck clockwise one turn. You're ready to start drawing cards for die rolls again. Repeat this procedure until you encounter the Rotate card and the word Shuffle is on the side closest to you. Now it's time to Shuffle.

First, set the Rotate card aside as shown (shuffle on the left side). Collect the discarded cards that are face up. Take the top card off the deck, rotate it clockwise one turn, and lay it down. Take the bottom card from the deck and lay it down on top of the card you just laid down. Do not rotate the cards you draw from the bottom. Repeat this procedure until you have no more cards in hand. The cards are now shuffled and laying face up. Pick them up, turn them face down, and lay them on top of the Rotate card. You're ready to roll!