Oreo Truffles

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Tomorrow night I'm going to whip up some Oreo truffles (made with 16oz crushed oreos + 8oz cream cheese, rolled into balls, refridgerated, then coated with melted chocolate)

I have 3 questions I hope someone can answer:

1. After they are made I will be taking them to my family on Christmas Eve. They live about 3 hours away. Will they be ok sitting out and not in the refridgerator? (They do contain cream cheese)

2. Does anyone have any ideas for decorating? I was going to do one package plain oreos covered with white choloate and one package mint oreos covered with dark chocolate. I figured I'd dust the black oreo crumbs over the white chocolate truffles but not sure about the mint ones.

3. I'm sure some of you have all ready made these, so do you have any other tips?

Thanks!