I have two tripods: a G1228 with Acratech, and a G1348 with Graf Studioball.
The G1228 lives in a flimsy nylon bag which came from a cheap (and useless!) plastic tripod I owned a decade ago. The plastic piece of junk was tossed years back, but the bag (much mended with gaffer tape) goes on. Has a strap which fits over my shoulder, and the bag itself weighs nothing. Of course, it has no padding either!
The G1348 is placed into a green canvas cover which came with some umbrellas for the garden my wife bought a little while back. I'd just got the G1348, and wanted something to carry it in. These came to mind, and indeed, the tripod fits in nicely. For some reason the manufacturer placed a strap along the length of the bag, so again, it can be slung over the shoulder. Weight, agian, is negligible, and indeed I often carry both, since I like to use both my MF and LF kit simultaneously. (I do plan to replace the Studioball with another Acratech when I can to make this even easier).
Both bags cost me nothing; both weigh next to nothing; neither scream "valuable item!". On the downside, neither is waterproof, and they have no padding to protect the tripods from knocks. Since I'm normally quite careful with my kit, this is not a problem for me.