Ooh there is a sewing shop near me, I might see if they are doing such things on a course. It was tea cosies and aprons last time...
I agree M&S knicks are not the same, the multi packs don't fit well and the other ones are a weird shape. I don't think you can get sloggi any more either.
I expect there are a few lingerie manufacturers n the UK, but they might be more ...er specialist that the cotton knicks I like.
No idea how anyone manages to wear a thong for a day - must be the same people who can wear flip flops... :-)