Mayday celebrations were actually quite common in the states at an earlier time, before they became associated with communist militarism (not to suggest that they had a lock on that phenomenon). Here in Tallahassee, FL, the locals had the longest running celebration (from the 1840's to 1961) of the "May Queen" variety, when they shut it down rather than integrate it. Since then, the old "May oak" has died and attempts to revive the celebration have been unsuccessful. Personally, I like the ancient Celtic notion of a fertility rite. Go forth and act like you want to procreate (or al least practice procreation). If you're lucky, somebody might take you up on the offer. :>)