I'm one of the arrangers for The Divine Hand Ensemble, an eclectic group let by Mano Divina on theremin. I've arranged an album of Astor Piazzolla tangos, and an album of Frank Zappa tunes. Here's an example of this unusual instrumentation being guided through some strange territory, a medley of selections from Zappa and the Mothers of Invention's "Uncle Meat" album.
Here's a taste of the arrangment I made for the Ocean City Pops in New Jersey, performing the theme from "Harry Potter" with my group The Night Café.
When we put the group Breckerville together, I did the charts for the band, a quintet of trumpet, tenor sax, synths, bass, and drums. Here's a few pages from our version of "Oops" by Mike Mainieri.
While at the University of the Arts, I ran the Charles Mingus Tribute Ensemble for 8 seasons. I wanted the students to not just read what notes to play, but to interact with the recording and make up their parts. To that end, I would handwrite a basic map of the piece and let them flesh it out. Here's an example of the massive piece by Mingus called "Meditations on Integration". Similarly, here's a rough sketch for the first 7 minutes of "The Black Saint and the Sinner Lady"