That particular gravel reminds me of my carport (or rather my parents' carport) back home XD
Damn gravel sound expensive D: I kind of like the look of gravel paths but I also like my "barefoot friendly" gardens so have currently loosely settled for brick/pavers (we have some of those lying around the house already, most of it unexpectedly dug up when we were doing the gardens and some that just got moved around as J kept stealing them from the existing paths for various other projects, and I'm hoping getting some recycled/discarded/second hand ones won't be too expensive when I need more x_x).

Gravel is weirdly expensive... well, nice gravel is. Dirty sharp stuff that you use to fill bricks is pretty damn cheap! We have lots of bricks lying around as well... but not enough for a path... and my wife doesn't want those!
Tumbling them is probably energy and time consuming so more expensive x_x
Fill bricks? Like when you put it at the bottom for the path? Or in between?
You could use your leftover bricks as borders? I think that's what's going to end up happening with mine in a vain attempt to stop the chickens scattering too much dirt in the garden beds in their area XD