Hilary Duff Auctions Autographed Shoes on eBay

Hilary Duff takes a stroll with her adorable son Luca on Friday (January 11) in Los Angeles.

The day before, the 25-year-old actress put a few pairs of her shoes up for auction on eBay in support of the Lancaster Opera House.

“bid on my shoes for a good cause…” she tweeted. “they’re all really cute and broken in by me… promise they’re not too smelly ;)”

PHOTOS: Check out the latest pics of Hilary Duff

Earlier in the week, Hilary was spotted heading into a workout session at V Pilates on Tuesday in Toluca Lake, Calif.