SIRIUS XM's Martha Stewart Living Radio will be auctioning Macy's Martha Stewart Collection Christmas ornaments for charity on eBay. Each ornament will be signed by a celebrity, including Martha and other SIRIUS personalities. Proceeds from the charity auction will benefit Taste of the NFL, an organization that raises money to fight hunger in America.

New autographed ornaments are expected to be available daily through December 12th, so check eBay: http://www.ebay.com/marthastewartlivingradio

This ornament is signed by Everyday Food editor Sandy Gluck.

Fashion designer Isaac Mizrahi has done a stylish job on his ornament.

Other celebrities who have signed the Martha Stewart ornaments include: Howard Stern; Gayle King; Dr. Maya Angelou; David Archuleta; Tom Arnold; Jacqueline Bisset; David Cook; Gary Dell'Abate; Derek & Romaine; Dido; Mitzi Gaynor; Bob Greene; Patti, Nona and Sarah LaBelle; Emeril Lagasse; Artie Lange; Isaac Mizrahi; Naughty by Nature; Nickelback; Fred Norris; Jamie Oliver; Dr. Oz; Chef Charlie Palmer; Pink; Robin Quivers; Carolyne Roehm; Rabbi Shmuley; Michelangelo Signorile; Joss Stone; James Taylor; Peter Walsh; The Wiggles; Marianne Williamson and Lee Ann Womack. Taste of the NFL has raised more than $6-million to fight hunger in the United States.

Martha's ornament is a glittered bird with an attached glittered acorn and a note card with her signature on it.

The ornament with the highest bid so far is the one by Alexis Stewart and Jennifer Hutt. Currently (December 4) it's at $300 with 20 bids.