There are a couple of web sites that offer ideas on how you could accomplish this. Here is one:

http://www.ehow.com/list_6965270_clue-bi...

i would also check on youtube for ideas for this theme.

Sounds like a great idea.

I'm turning 15 in the summer, and I have decided to do a Clue/ murder mystery party. If you have thrown one of there, or have attended one then it would be great to have some tips. I'm hoping that the game will last at least an hour, and if you have any ideas about what to do after that would be cool too:)