Pulled from the comments section — a few photos compiled by the good people of the UC Davis physics department. Full set here.
Photograph by Professor John Conway, taken in Marysville, CA.
Professor Manuel Calderon projecting an image at Lake Tahoe.
The holes of a straw hat make multiple pinhole cameras. (Sam Schmidt)
Undergraduate physics majors Kyle Tos and Matthew Mckinnel, together with engineering majors Mark Bennett and Andrew Mesias watch the eclipse in Red Bluff, CA (with appropriate eye protection!)
And finally a video of eclipse shadows taken in Sacramento by Brian Russ of the Office of Research.