Guitars in the Classroom, a non-profit organization that trains and equips educators to sing, play guitar, teach, and lead their students in song, is auctioning a Kohala Kanikapila-style concert ukulele and a Fender Classic Vibe Telecaster as part of its “Stars, ­Icons and Legends of The Surfing World” program.

The Surf Uke has autographs of many surfers and surf-related celebrities including Joel Parkinson, Kelly Slater, Jack Johnson, John John Florence, Gerry Lopez, Rob Machado, Dane Reynolds, Shane Dorian, and John Cruz. The Fender Classic Vibe Tele, donated by the Fender Music Foundation, has been signed by music and surfing greats Donovan Frankenreiter and Rob Machado, as well as Switchfoot founding member Jon Foreman. The auction also features a guitar signed to order by jazz great Al DiMeola. To learn more, visit guitarsintheclassroom.org. and stores.ebay.com/auctioncausestore/pages/guitars-in-the-classroom.