Bold Zig Zags

I have a dingy ugly basement bathroom that could use some updating, and I am looking for a quick and inexpensive fix for the time being.  I would love to try a zig zag pattern like Tommy Smythe did in a Victorian home makeover he did that was published in House and Home.



Photo from House and Home.

I think I would use shades of blue and green, maybe something like the this fabric, but in a large scale zig zag pattern.



Fabric sourced from here

  The only problem is how on earth do you do this and how long would it take?