Any ideas for a platform situation with a Svengali Deck?

The deck just forces a card. What you do to reveal the chosen card is what makes it a close-up, platform, theater or colossal stadium trick. It's the same with even a force from a regular non-gimmicked deck.

Close-up: Open up those sealed envelopes. Is that your card inside?
Platform: Here's a matching deck of jumbo cards. You have your card. Does this jumbo card match that one?
Theater: Take out the card you chose that you have been keeping hidden in your pocket. Show everybody. Does it match the card on this giant six foot silk?
Colossal stadium: Take out the card you have been sitting on, show it to the cameras and everyone in the audience. Now look up in the sky. What card do you see painted on the parachute of the magician that is just landing from that tiny plane up there? Yes, it's me! How did I get from down there to up here?

Thanks Jim.