Roll it away
Dusting material lamps is a bit of a nightmare. You cant get the dust off with a cloth as it sticks, or with the vacuum as it’s too delicate. Tempting as it is to just get rid of all your material shades if you actually like them then here’s what you can do:
Get that lint roller out of the drawer that you never use, and rub it along the side of the shade. It will pick up all the dust and then you can just peel off that outer layer of the roller and throw it straight in the bin.