Figured I'd take a few pictures and turn it in to an Instructable to the benefit of anyone with a similar need!
Step 1: Items Required
2. A reel of wool/thread/ribbon
3. A cloth of your choice (enough to wrap the entire structure).
4. Adhesive that works on cloth (I used Multibond.)
6. Pliers ( to twist the wire)
7. Needle and thread (unless you'd rather use glue here too)
8. Whatever you'd like to decorate the cloth with (sequins, rhinestones...anything goes!)
Step 2: The Skeleton
I aimed for a hemispherical cover of radius 15 cm. You can pick a size that suits your needs, of course.
I constructed the skeleton by first making the three horizontal rings, fixing two hemispherical arcs to the bottom most ring, and then adding on the next two rings. I fastened the rings and arcs in place at the joints as I went using wool. The photos should help visualise this.
To get a good circle, you could use a large enough cylindrical object to wrap the wire around. I also used the tile grouts on my floor (because they resemble crosshairs!) as a means of visually splitting the rings in to quarters, so that I could place the two arcs. Not the most accurate method, but one need not be very accurate in this case anyway :D
Photo 4 is a complete skeleton. I clipped off the extra wool dangling at the joints afterwards, for a neater look.
Step 3: The Skin
I pasted the first cloth (green) by applying adhesive on to the outside of the skeleton and then pressing the cloth on to it, folding where necessary. I left the bits sticking out at the bottom to deal with later.
When dry, I spread the black cloth over the structure such that there would be excess cloth all around. Then I pinched it at the apex of the hemisphere and raised it slightly and tied this finger-like projection with some wool to form an easy handle (as seen in Photo 5). Make sure that there's enough cloth to firmly cover the bottom of the structure on all sides when you do this!
I then cut the cloth around so that I could easily sew it in to place. I put stitches along the circumference of the lowest ring and folded the cloth neatly as I went around, as you can see.
Step 4: The Adornments!
Et voilà! One simple, unique food cover :) Doesn't score high on sophistication, but it does it's rather mundane job...at least it did at dinner tonight!