For all you liguistomasochists out there: Tongue twisters in Klallam, a Coast Salish language from Washington's Olympic Peninsula. Click on them for sound.

Here's a map of Klallam toponyms if your interests that way tend.

 Vedius Pollio and execution by lamprey... Wikipedia's notes claim that it must rather have been morays. Appalling and rather tough to credit either way, even by Roman standards, but nonetheless remarkable.