The auction benefits War Child, a charity that supports the children of war-ravaged regions.

Indie music magazine Under the Radar will release this year’s Protest Issue next week, with cover versions that feature Dan Deacon and Tegan and Sara.

For the issue, which includes stories about the music of Occupy and a discussion of queer issues in music, the magazine entreated a long list of artists to craft personalized protest signs. Beginning today, the signs are being auctioned off on eBay to support child advocacy organization War Child.

The length of participants is a lengthy one: Apparat, Andrew Bird, James Blake, Body Language, Charli XCX, The Citizens Band, Cymbals Eat Guitars, Dale Earnhardt Jr. Jr., Dan Deacon, Matthew Dear, Death Cab for Cutie, DIIV, The Drums, Dum Dum Girls, EMA, Fanfarlo, Hooray for Earth, Beth Jeans Houghton, Ladytron, La Sera, Liars, Lost in the Trees, The Love Language, MEN, Menomena, Janelle Monáe, Tom Morello, The Mynabirds, Niki & The Dove, of Montreal, Okkervil River, Amanda Palmer, Peaking Lights, Poor Moon, Porcelain Raft, Laetitia Sadier, Shabazz Palaces, Silversun Pickups, Slow Club, Summer Camp, Taken By Trees, Tegan and Sara, Corin Tucker, Reggie Watts, Youth Lagoon, Zambri, and Zola Jesus.

The signs are as diverse in message, from Blake’s reserved “Nurture Their Vocation” to EMA’s strident “Make them bleed. Make them feel like I do like you do like we do like they do like thy do.” The auction ends at 2 PM on October 23. [via Pitchfork]