Carbon nanotubes are cool, but i will believe space elevators possible once someone shows me a carbon nanotube rope i can climb with. I'd settle for a bike or motorcycle chain. A nanotube-based shoelace would be worth a noble prize or two.
You could apply the same principle and weave a bootlace from them, but the limits of current technology would render that an exceedingly expensive bootlace.
Ripstop cloth is a mix of plastics and line giving a fexible cloth that is very very strong. Its also airtight so you can inflate it (for a time - its not 100% without a bladder)
Inflatables wings. Hulls.
Same goes for titanium wedding rings...
Fyi, the military has a specific way to lace boots so the laces can most easily be cut to remove the boot.
A nanotube suspension bridge would be pretty amazing to see.
But it’s amusing to think of it the other way: any society technologically advanced enough to have invented the shoelace will inevitably invent the space elevator.
http://news.rice.edu/2017/10/16/long-nanotubes-make-strong-f...
(Though note that this is not one long nanotube, but a macroscale fiber made by extruding micron-scale CNTs in a special way so that they align.)