Googling the subject, I came across this beauty:
http://www.alibaba.com/product-gs/203530542/double_wall_pitcher_600ml.html

It looks like what I imagined Space Cowboy described a few years back,
re. shortening the rod in a French press. (Except double-wall
borosilicate glass.)

Googling some more, Jing Tea Shop sells 'em.
(http://jingtea.com/teaware/glass-teaware ; the 600mL "tea-iere". No
affiliation, though I might buy one someday.)

N.