You can pull nearly anything out of the dumpster and use that.
How's that for environmentally friendly?
I saw some gigantic pillow bags sticking out of the dumpster and decided to use those in order to maintain the bag aesthetic.
This instructable will teach you how to make a giant bag into multiple "glove bags".
Step 1: Grab Your Trash
Make sure, before you bring any inside your dome of domestication, they are relatively clean and do not smell of Saint Peter's robes.
Step 2: Mod Your Trash
Step 3: Examine Your New Poop Grasping Tool!
The pieces ended up being somewhere between 8" by 4" and 9" by 8".
These have worked well for me in 'real world use'