The Rider Acoustic from Blackbird Guitars uses carbon fiber instead of wood to create a lightweight guitar that they claim sounds as good as a traditional, full-sized acoustic. It's certainly striking. (And in a good way, unlike so many out-there guitar designs.)
A DTAR Wavelength under-saddle pickup is a $140 option should you want to take the Blackbird electric. The guitar itself is $1,600 with a four-to-eight week waiting period.
Like the sleek black aircraft with which the Blackbird shares its name, the guitar's pilot will tend to leak fuel (preferably a rye) until they have achieved altitude.
Product Page [BlackbirdGuitar.com] (Thanks, Jon Ruiz!)