I like to collect FAHs. This is a pic of one I found in the Straight River last weekend. This one is different than most, it seems this alien met a rather tragic ending based on the contorted grimace.
Some interesting FAHs originate from the Omarolluk region of eastern Hudson Bay. Apparently a large number of aliens met their end sometime before the last ice age or two. Their fossilized heads were transported and deposited by glaciers all over the upper Midwest. Here is another one that may have an origin other than Omarolluk based on the color. This is more like your stereotypical alien head, note the distinctive elongated face and eyes, lack of a mouth.
Here is a link to a summary of the origin of Omars.
http://www.erudit.org/revue/gpq/2000/v54/n3/005654ar.pdf
