I would love to lie down with my head in a bin, looking up, one side cut out and my shoulders making a partial fourth side while my head is in the bin or partial box of some sort and have a bucket pour mud until the bin is full and my face is covered. If I would have a partner this would be no problem, but I am solo. Any ideas for how a lonely guy can make this happen?

I figured it out!

I'm gonna fill a water container like below with mud, and lay my head below in (in a 3 sided container of some sort - I'll figure out how to close up the side where my neck is the best I can. The mud container will be above me, I'll reach up, unscrew the cap and the container will fill slowly til my head is completely buried in the container