Remember when I made a duct tape shopping bag? Okay, this might be proof that idle hands ARE the devil's playground. I DIY'ed a litter bag for Einstein, my Scion IQ. I basically just covered a plastic glassine envelope with duct tape (Or actually a Duct tape sheet) and used white duct tape for the border, but a person could use a paper bag as well. And you don't need the sheet. I would think you could use strips of Duct tape. I was going to put a pocket on the front to hold tissues (I sneeze a lot), but thought-No, when i dump the litter bag then I have to remember to catch the tissues. Anyway the flame motif adds a lot.I attached it with a 3M Command clip, but that is because I don't have any knobs to hang it from in the IQ. Solves the litter bag problem, and since it is a law (or was) in Washington state to have a litter bag in the car, I like to keep in compliance. Cause that's how I roll.