where are the best places to find mud because i'm interested in trying it out?

Hey Scotty.
Whereabouts in the world are you? There may be some recommendations.

Was going to ask the same thing about your location! I'm in the eastern US, so there are a lot of stone quarries here. They always have deep clay pits you can find on Google maps. The mud pics on my profile show the type of creamy mud you can find in a quarry.