Making floor cloths

I am still stubbornly making my own floor cloths. Using 6x9 foot canvass. I am using "paint markers’ expensive and alot of work. i amgoing to be getting most of my supplies from Aliexpress and DHGate. But i am wondering if anyone else is involved in such an endeavor and if so what techniques do you use to make it easier ?? Also , Anyone wanna share pics of there works and or add recommendations ??