Graham's Stereo Photography Project
F W Thornton
is selling replica antique stereoscopes, presumably assembled, for $99.95.
If this is the one in the picture on his page, it looks very nice.
There's also a cheaper one in kit form from
Reel 3D for
under $50. This is the one I bought, and I'm very very happy with it, but
I do warn you that its construction is not 100% professional - when assembled
it has a certain charm that comes from its hand-made appearance rather than
from machine-chiseled perfection. The latter kit is not yet advertised
on Reel 3D's pages, but you can get the info about it from them by
phone on +1 310 837 2368.
Smoke and mirrors.
Viewing without devices
Personally, I can't, but then I can't see random dot stereograms either
and other people can, so give these a try...
(I tried to eliminate random dot stereograms from the above search)