Heavy Muddy Flooded Rug - Satisfying ASMR Time Lapse

I'm seeking for rugs that are as filthy as possible. So, if you have a rug lying around that you were going to throw away but instead decide it could be useful, please email me.

For a reasonable collection, this must only be based in the United Kingdom.
The rug will be picked up without charge, cleaned, and either donated to a good cause or returned at your request.