A quick google for more information about cryonics' illegality in Nederland, Colorado came up with this page that has "The Frozen Dead Guy Day Story":
http://www.nederlandchamber.org/events_fdgd-story.html
Even if cryonics is illegal there they seem to be fine promoting all the Frozen Dead Guy days (I assume for tourism and related things):
http://www.dailycamera.com/boulder-county-news/ci_18282009?source=most_viewed
I'd imagine the efficacy is halfway between proper cryonics and embalming and burying; the more interesting part may be the festival. Nederland is a small town 20 miles from Boulder, CO. I doubt the festival attendees are cryonics advocates, but they don't seem prone to the negative associations corpsicles often raise. Perhaps it's just because Boulder, Colorado is full of weirdos, but I wonder if there are more exploitable effects in play.