I've been into gunge and messy stuff for years. I discovered my love of gunge as a kid watching gungey gameshows on TV. Used to have a video tape full of clips I had recorded.
Recently, I have been been getting really messy with lots of solo sessions (some videos of my sessions are on my umd store and my youtube channel).
I have tried custard, foam, gelli baff, natrasol, beans, xantham gum, cooking oil and other things as gunge. My favourite is definitely proper gunge/natrasol (thanks to the gungeshop for providing this great service of selling the stuff!). I love to get messy in lycra sports kit as it really adds to the feel of the slime and can be filled easily too!
To date, I have one messy meet which was great fun. We played some games in a paddling pool with some messy forfeits including pies and buckets and buckets of natrasol. It was a great experience and will definitely be doing again soon! So much better when it's someone else covering you in gunge.
Please take a look at my pics and videos and give me some feedback if you like. I'm always up for messy challenges too, so please message me anything you think I should try!