I am not exactly "new" to the WAM play concept, I am however a complete beginner with its actual implementation. I personally have been turned on by the thought of getting covered in substances like slime, lube and other materials for about the past 2 decades and I was always nervous to participate IRL. But lately I have slowly been warming up to idea of actually giving sploshing a go IRL to see if I really enjoy participating and getting gunged. I have been making some headway in planning my splashing with Oatmeal and one or two other substances. But I am unsure of a couple of couple of items

1) Mess Confinement - I was thinking of a small inflatable pool (But I'm a big guy both in height and weight)

2) Outfit for the Sploshing - I was going to start of in speedo-type swimwear and then eventually end up nude.

But I'm wondering if there something more suitable for a beginner then my above plan. Any advice?