following chinsettawong's idea ...
http://gilmore.chem.northwestern.edu/staxmale.jpg
will make more once I get some real Teflon. Plexiglass does not
like to do this.
Started dumping rain on a 7 mile long descent, so I bailed on the ride when I reached the rest stop. Never thought I'd have to worry about cold shivers on an event in June, go figure. Still got 85 miles and 10317ft of elevation change in.