The obscure (to me at least) video game character that my son has decided he wants to dress up as for Halloween has a helmet that covers his entire head, like so.
My plan was to make a stretchy covering that I can just pull over the fencing mask we’re using as a base. I have some appropriately stretchy black knit fabric but am having a hard time figuring out the best way to fit it that will result in the fewest wrinkles.
Any suggestions on how to tackle this?
I would probably do 4-6 pieces that are kind of pointy at the end and wide in the middle, like () and sew those together in a circle to make a sphere.
I will give you a fair forewarning, though - if you’ve never worked with stretchy fabrics, be prepped for a rough project, and use LOTS AND LOTS of pins.
Why not just use black pantyhose? Or tights.
Maybe with a 7" invisible zipper in the back? Although, as Sehmket said, stretchy fabric will give you nightmares if you’ve never worked with it before.
Aren’t fencing masks made with a prong behind the head to keep it on, or am I thinking of something else? Is that what you’re asking- how to get a smooth effect from a “bumpy” form?
kittenblue, I thought about black tights, but the fencing mask is quite a bit larger than a head. I’d definitely have to use a piece from up near the panty, and then I’m stuck with the problem of closing the tube in an inconspicuous way.
I love my son, but I’m definitely not investing the time in an invisible zipper! 
I think I’ll try your idea, Sehmket.
I’ve sewn enough that I don’t think the knit will give me trouble. I’m old enough to have sewn “Qiana” when it was all the rage. 
OMG, I made my wedding gown and the bridesmaid’s dresses from Qiana! I loved that stuff!
I think you might be surprised at how far a pair of pantyhose will stretch, especially if you bought a queen-sized pair. But you have to come back and post a picture when you are done!
I’d cut the* control top* off of control top black pantyhose and tie a knot to close. Flip it inside out, and the knot will be on the inside, and the control top opaque enough to hide it from view.
I mean, fer chrissakes, it’s a Halloween costume, not a gown for the Oscars. Don’t make yourself crazy here!
