just do the cardboard WOF templates and resin/glass, it's really easy, you can get a fiberglass kit at walmart.
My first bucket I made by cutting the fiberglass mat in the shapes of the WOF template and glassed them onto the cardboard bucket, my second bucket (this snow bucket) was only glassed at the edges of the connecting areas ie the cheek bones, and the dome top to face, and the visor area.
I don't recommend trying to bend plastic to form a bucket... ALTHOUGH I have seen the HOMER bucket... A Home Depot Orange bucket turned to Mando bucket.