Okay - I didn't want to pay mucho doneros for a muslin backdrop, so I went to Wal-Mart and bought the following things:
1. 9'x9' Muslin ($14)
2. RIT Dye - Tan & Dark Brown ($8)
3. A Pourous Laundry Bag ($3)
4. A Shallow Plastic Tub ($3)
Total $28
Here's what I did:
1. I washed and dried the Muslin (hot water)
2. I crammed the muslin as deep and tight as possible into the laundry bag and then spun the rest of the bag around and tied it off so it was tight.
3. I filled a shallow tub with less than 5 inches of hot water and poured in the whole bottle of Tan Dye (and a cup of salt).
4. I gently laid the laundry bag on it's side in the tan dye so that half of the bag remained above water level.
5. I waited thirty minutes
6. I removed the laundry bag and added 1/2 bottle of dark brown to the tan.
7. I turned the laundry bag over so that the previously dry spot was down now and gently place it in the water so that the other half was NOT submerged.
8. I waited 30 minutes
9. I removed the muslin, rinsed with cold water, ran it through the wash, and then the dryer.
Here's the result of my $28 experiment: