Futuristic/Science Fiction Paths/Walkways? QR codes needed!

[Jocelyn Cohen]

I'm starting to work on landscaping my town, Normandy, but I can't find any decent futuristic-looking QR codes. I would prefer path codes with a clearly-defined border that doesn't clash too badly with my grass. (I do want to leave some natural spots and I don't want to roll grass patterns over the whole town just to make my paths look decent.)

Does anyone have any suggestions? Happy to take them.