I wanted a couple small wipeable ones for a specific application so I dug out these two pieces of vinyl coated fabric or oilcloth (not sure what they're actually called) that I'd had for ever and never done anything with. The top one (with the purple flowers) is much lighter weight and came from Hancocks. The middle one is from my LQS.
The first one is just a regular zip pouch. It's slightly trapezoidal because I was going to make it boxy at the bottom but lost interest at the end.
For this one I decided to do my first ever curved-around-the-side zipper. It's small (3x4 ish) and the heavyweight oilcloth. Definitely should have used regular fabric for my first attempt at that. It came out fine, but the curve is not very smooth and fabric didn't turn or lay nicely flat like I would have preferred.
And finally, another pinchushion/thread catcher to put over by my embroidery machine. Hooray! I love getting to use all my fun print fabrics.
My conclusion: the vinyl covered fabric isn't hard to use or sew, but it is a bit challenging to deal with when making small things (just like any heavier weight fabric would be.