In the Symphony community, people are constantly asking how to generate random numbers, and the response is always, "You make a Campfire service to return a value." I decided to get my toes wet in the Campfire Service pond with this quick and easy problem, and here's the solution. Check it out. http://overture21.com/campfire-service/detail/54/
It's 1.7 compatible, and when 2.0 gets released, I'll update it for that.