What you do is cut a slit at the bottom of an existing pair of pants, and
then sew in a triangle of other material, so they bell out. At least, I
remember that being done in the early seventies (when you actually could
buy bell bottomed pants).
> (An aside - a friend who loved
> his embroidered peasant shirt from the late '60s, early 70s has decided to
> attempt to make his own replacement from scratch.
I think my mother did that once, though it wasn't a peasant shirt.
Carefully open it up, and copy what remains.
I suspect some of this stuff is explained in books from the early
seventies, where frugality might be an issue. I'm too lazy to check, but
Rolling Stone had a sewing book out back then, that might have such
tricks.
After all, the reason tie-dye came to the counterculture (it had existed
previously) was that artists in San Francisco had no money, so they'd buy
at rumamge sales and the Salvation Army. That's when they started wearing
"odd" clothing, since if they were buying used, might as well dress up in
that band jacket or whatever. But shirts were in more limited supply,
except for white collar shirts. So they started tie-dying those, a little
more interesting than just dying them one color.
Michael