[Of course he could. He lives in the middle of a desert. Which means a lot of glass makers and a lot of glass ware. Kankuro wouldn't be hard pressed not to find a use for them.]

Probably some sun catcher curtains. Or a good way to hide ninja wire in plain sight is to use it to string beads. Also, if you tie it right, it gives you a place to hold when garroting someone. Not the most comfortable grip, but better than loosing fingers to the wire.

[More glass sounds. Pretty and practical uses even.]