So, I am looking for some ideas of things to put in my shorts for a new experience. Over the years I have put most of the common messy things in my shorts, including things like eggs, custard, beans, trifle, chocolate cake, molasses, syrup, as well as non edible things like paint and mud. I want to try something new, it must be not too smelly or stain either me or the bath. My gunge partner suggested stuffing a wet fish down my shorts, but has anyone any other ideas? Pictures may be taken