I drew up these instructions when my Boy Scout troop decided to make their own hammocks. Stuff sacks are an easy do-it-yourself project with minimal sewing skills. I often have enough left over material from other projects to scrap together a stuff sack, but you can purchase all the materials from your local fabric store or online. I found all my material from backwoodsdaydreamer.com.
If you’re not into sewing, but you are in the market for a double-sided stuff sack, I highly recommend the Jacks “R” Better Speed Sacks.