Yes, that is me and it's landscape fabric but I use the professional version that I was able to get at a huge nursery. Granger also sells it. I like using landscape fabric vs. black plastic because it's not so shiny and it's paintable. Here's a link to the full written tutorial: http://www.halloweenforum.com/blogs/terra/611-building-haunt-wall-panels-tutorial.html
This is how the landscape fabric I use looks. The stuff is so resilient that it's being used for cheap bags and packaging...
Oh, your teaser card (my very first) really sent me on the hunt. Soon as I saw someone refer you to MWK <smack to the head> I just knew it was you. Then it was so fun as you teased on the thread here about it being in Texas. Sweet torture.
Thank you again for your gifts. The artistry was such a treat to behold and admire. Plus - I get to Keep THEM! <Muh ha ha ha!>