Machias Seal Island, in the Gulf of Maine, is claimed by both the United States and Canada. This has been the case for hundreds of years. I propose that this situation be resolved by rolling a six-sided die. If any of the numbers 1 through 3 come up, the United States renounces its claim, and the island belongs to Canada, undisputed. If any of the numbers 4 through 6 come up, Canada renounces its claim, and the island belongs to the United States, undisputed.
The die shall be produced by a neutral party that both nations deem acceptable (Switzerland, perhaps) and both nations shall have the opportunity to examine the die before it is rolled. It shall be rolled on a standard craps table, with one hand, and must bounce off of the far wall of the table in order for the roll to count.