With the lovely (freakish?) spring-like weather we've been having lately, my mind has turned to - sewing! (And printmaking, but that's a whole 'nother can o' worms.)

I found this lot at a shop I've never been to before, and probably couldn't find again unless I needed a car window replaced and had 45 minutes to wander aimlessly round an industrial area. Must've been the sugar rush caused by the strawberry Fanta*, but I came over all dizzy and bought tons.
Now I know nothing about sewing, but surely it's possible to turn those into something like this?

Without having t
o
(shudder) put
zips in? Can I just fold the fabric in half, sew up the sides and cut holes for my head and arms? And then add some darts fairly haphazardly? And then (yes, mom) bind the edges very very neatly?
I used to wear things like this when I was still in Doc Martens, but I didn't have a mirror then and I didn't
care. And my hair was pretty distracting.
*Haven't tried it yet? It's the ultimate in
Red Juice.