So where to begin? I got a lot of inspiration from Adam Savage's Totoro costume for ideas about framing--just less oval and more spherical. After a little trial and error (aka, getting materials online, then realizing they definitely would not work) I found some light irrigation tubing down at my local home depot. I got 100 feet for about $11, so the price was perfect. I had a leftover construction hat from making gargoyles a few years back (I think they're under $10 at home depot again) and started. To make the hoops, I did a little math to figure out the circumference with the largest hoop being 5' in diameter (so about 15' around). To put them together at first I tried just duct tape, but there was always a bend because the tubing is (perfectly for my purposes) meant to be fairly rigid. So I cut a small piece (under 5 inches) and slit it on the curved edge. This piece could be curled in on itself a bit to fit back into either side of the tubes, but rigid enough that it reinforced curve of the tubing. Then lots of duct tape was applied to keep it in place (though it didn't need it that much).
On the fabric/slipcover end of things, I'm planning on dyeing some white muslin gray and using cheesecloth as a window for the wearer to see out of. Still pricing cheesecloth, and watching Joann's coupons for a good time to get muslin.
Apparently my mom had a coat rack! Which I sto...erm...borrowed for boulder costume making purposes. The hat fits perfectly atop it and makes putting on the lower rings much easier. I may need to space out the next couple of hoops further--there needs to be a fairly large viewing window for the wearer to see out of and currently it's more like a very slim slit that allows you to kind of not stumble. *sigh* Stupid practical things like walking and physics are so inconvenient!
Finished the basic frame. Some adjustments need to be made with the hat--I think it's just way too heavy, but I have plans/sketches for a harness that sits on the shoulders and takes the weight off the head. But the hat has been useful for actually building the basic frame. So not a waste or anything.And yes, it turned out a little more oval than a proper spherical boulder...but I always knew that was a possibility. Sometimes you have to go with what you're able to make at the time.
Stopped at Joann's and picked up several important elements. First up--the muslin. After some (hopefully accurate) math, I figured out that with panels of about 2.5 yards, I needed a good 12.5 yards to cover the whole thing. So I ended up with 11 yards of solid muslin, and 1.5 yards of some more see through tulle. The plan is to make the slip cover, and then dye everything. Also, I'm planning on sewing it in a kind of drawstring bag kind of style so that towards the bottom, there will be a drawstring that can be pulled tight. I'm also working on the harness at the moment, but Natalie will be coming over next week and we'll have a proper fitting. At the moment it's a little...precarious. More plans and pics to follow.
Have been working on the harness and wanted to show my work a bit. So I ended up using quite a few parts. Lots of pvc pipe--I used 1/2 inch, just because that's usually what I have the most of and usually have extra parts hanging around--makes things easier when doing random projects. The measurements will change with the frame of the person being fitted for it, though the joints will be the same.
So I used:
4 Side outlet elbow joints SSS
8 Tee joints SSS
Half a pool noodle--definitely mandatory for comfort.