Many of the tribes in the Pacific Northwest have a version of Raven stealing the light. The Raven features prominently in the creation myths of the coastal tribes, and in the story a man has taken the sun and locked it away in a box, and Raven tricks his way into the man's house and becomes the man's grandson. When the time is right, Raven transforms back into his true form and flies off, clutching the sun in his beak. There's a lot of good imagery available that would lend itself well to costume and set design for theatre, just do an image search for "Raven steals the light" or "Raven steals the sun".

If you are in the US, try contacting one of your local Native American tribes. What an opportunity to share their tale and to be sure their story gets out there in a way that the tribe feels best represents their beliefs. My former HS did a production of Peter Pan, and had help from the local Seneca tribe to pen a song in English and Seneca language rather than sing "what made the red man red". Seneca leaders also assisted in respectful and accurately dress. It was a great production. Good luck to you!

The "Star Husband Tale" is widespread and takes many forms, but its popularity reflects, in part, the fact that at its core is a very good story. See this telling, for example. But if you Google "Star Husband Tale" you will find many variants and a great deal of information.

It's always bound to pop up in discussions of Native American legends, but the Popol Wuj deserves its ubiquity. It's got an overarching plot of the Hero Twins seeking revenge for their father and themselves, but is also filled with clever vignettes that could fit well in a theater. For instance, I could envision the scene beginning on page 148 of this translation, in which the Twins trick the lords of Xibalba into revealing who they are, as a fun scene on a mostly dark stage with a few spotlights. Some of the scenes could be liberally expanded, as they undoubtedly represent contractions of other popular tales.

I think Richard Erdoes is one of the better collectors of Native American folklore out there. Some of the stories in the anthology he edited with anthropologist Alfonso Ortiz, American Indian Myths and Legends, are really great.

Most of them are longer than the bits I remember off the top of my head, but two tales... or, really, elements of tales... that stuck out for me:

• Lakota (I think... Great Plains, anyway) creation story: Rabbit Boy, a playful little kid, creates the first man by kicking around a blood clot. He just finds a scab on the ground and invents a kind of ball game because he's bored - kicks it, and sees the shape it takes, then kicks it again. Hey, it's getting kind of... person-shaped! The more it moves, the more it wants to move!

This can probably be staged in a fun way if done in a kind of sing-song, repetitive pattern. There are other versions of the story where the glob of "life-stuff" is snot or phlegm. (There's an online version of it here - credited to Erdoes, but I can't swear if it's the same text.)

• One of the Western peoples (Dine? Probably not - maybe Shasta?): A whole series of raunchy Coyote stories, including one where he gets what he deserves. Coyote is one of the ur-tricksters, a real anti-hero, and there's one chapter in his exploits where he's run away from some disaster and kind of hiding on one side of a stream and notices a pretty young girl on the other, gathering reeds to weave into baskets, and he thinks, "I'm gonna get me a piece of that action," so he stretches out his penis underwater until it reaches all the way across the stream and starts rubbing it against the girl's legs and trying to get it under her skirt. The girl, not being as easy a target as Coyote thought, recognizes what's going on, grabs the offending organ with the next bundle of reeds and cuts the end off. Coyote howls and runs off, defeated.

I can't find a version of that online but there are plenty of other raunchy Coyote stories.

There are also some Dine and Hopi origin stories that are less "how people were created" and more "how our people came to this place" that involve climbing up out of subterranean worlds... those might be fun to stage, depending on how into climbing and set construction you want to get.