PORTLAND, Ore. (AP) — A pair of rare Nike sneakers donated to a homeless shelter in Portland, Oregon, are up for auction and are expected to raise as much as $20,000.

Why? They were custom-made for filmmaker Spike Lee.

The Oregonian reports that the gold Air Jordan 3s were dropped in the donation chute at the Portland Rescue Mission this spring.

A man in its long-term shelter program found them while sorting through donations and told the staff.

The gold sneakers were among a few pairs designed in 2019 for the filmmaker.

Lee wore his pair when he accepted an Oscar for his “BlacKkKlansmen” screenplay.

The Sotheby’s auction runs until Monday.