IMHO, I believe that the best impromptu version of Out of This World is Harry Lorayne's Impromptu Out of This World!

I agree with Rodney. HL's is an excellent version of OOTW.

Does anyone know where to find this?

Hi!

You can find it in Harry Lorayne’s Book "my favorite Card Tricks"

I love his version, and in my opinion it’s better then JC Wagner’s version, where you predict the amount of the spectators misses.

greetings,
Thomas

Since this is in the Impromptu room, I assume you won't always have your playing cards with you. So if you're at a restaurant, why not consider using the sugar packets (regular sugar and the pink/blue stuff.) Mike Close has a clever version of wolves and sheep (or something like that) using a gimmicked sugar packet.

Put your minds to it.

yours,
Scott