Whilst sorting out my sewing things in my new bedroom I came across a bag I had completely forgotten about from a visit to the
Scrap Store last year which had a selection of underwear/bra elastic which did not contain latex. I only have a couple of metres of each type but I'll add them to the collection and let you know if I find any of them useful.
Unpacking my sewing stuff confirmed my suspicion that I had forgotten to pack any scissors! This made it difficult to start sewing anything, but since I felt in the mood I re-elasticated a petticoat my sister bought me for christmas.

I recommend getting one of these doo-dahs if you are going to be threading anything through a waistband, I can't remember if they have a name, but it's basically a latchet hook with a long stem - makes threading things so much quicker than the 'safety pin wiggle' technique I used to use.
This is also going to be a test of the durability of the clear elastic, which I have just tied off rather than stitched through. It's not as stretchy as 'normal' elastic and I'll let you know how it fares after I've worn the skirt a few times (: