I just released Swamp Self Bondage, 2015-09-10 in my clip store.
The clip includes the last minute of the self-tying effort, because I wanted to show how I came to look like a mud vampire. Spoiler: it was because I had to put the muddy rope between my teeth to tighten the knot.
The clip opens with a short slog into the mud and quickly proceeds with the bound struggle. About 12 minutes of the 14 minute clip are of me, struggling in the soft, black mud. I try to hold my feet above the mud, while I tug on my genitals with the rope that connects them to my ankles. My wrists are tied behind my back, such that I cannot get them free.
The clip ends with a closeup of my muddy crotch. It was a good time, and it made me very horny. I wish I had had more time before the tide overtook me.