So if you live in Oregon on the coast, you can go to Lincoln Beach and root around for planted glass floats! Here is the official info:
The project began in 1997, when a local artist first thought of glass floats as an intriguing way to launch the new millennium. Lincoln City sponsored the project, hosting the inaugural season in 1999-2000. Tourists came from around the country to search for their own brilliantly-colored, signed and numbered glass float. For Lincoln City the Millennium Float project was a perfect combination of art and the outdoors. Those who came in search of a float often found their way to area galleries where unnumbered floats were available for sale, along with a dizzying array of fine art glass from around the world. The city continues the promotion annually, running from Mid-October to Memorial Day – with hand-crafted glass floats being placed along the 7-1/2 miles (12 km) of public beach in Lincoln City, from the Roads End area to the Cutler City area. We put out the number of floats reflected by the year – so 2001 floats were placed in 2001, 2002 in 2002, etc…. You find it, you keep it!
How fun is that? For the current 2015 poster and more info, go here: 2015 Lincoln City Glass Floats