I got an e-mail today about a party at the Oasis Hotel in Cancun that goes on for several days around July 4. It is called "Bikinis and Boots, Speedos and Stetsons". During the event there are contests judging girls wearing bikinis and boots and guys in Speedos and Stetsons (cowboy hats). I went to the hotel website but saw no mention of it, but the e-mail linked to the schedule of a lot of very fun events. It was good to see the promotion of guys in contests wear speedos at what seems like a regular hotel event (not gay oriented)
Hope the link below works
http://www.etravelmail.com/EMAILS/oasis/oasis-12.htm