HELP!!!! Do you know about Salt Scrubs?

I am in desperate need for some really crafty or do it yourself kind of people here. I was asked to do one of the classes for Enrichment this month. I am not on the committee or anything, they just called and asked if I would do a part and someone would give me the information. Our Enrichment is on Tuesday and because of some miscommunication I have just found out that I have to do a 10 minute class on homemade salt scrubs for your skin. I also have to talk about what's good for your skin and have them try out a scrub on their hands. So I am BEGGING anyone who might read this if you have a recipe that you like or if you have even made a scrub, let me know what you did. I only have 2 days to put this together. I don't think it will be too difficult but after googling salt scrubs I have found there are WAY too many options and I don't know where to start. Some use sugar, brown sugar, kosher salt, and even epsom salt. What works best?