Here are two examples:

Rap artist Eminem recently held an auction of limited-edition Nike Air Max sneakers designed and autographed by the artist raised funds to benefit disadvantaged youths around the world. 100% of the auction proceeds have gone to the Marshall Mathers Foundation and UNHCR’s ninemillion.org campaign. All proceeds will be shared on an equal basis between the two charities.

UNHCR Japan auctioned a limited edition collectible set of Bearbrick Nike Football toys representing the eight Nike-sponsored teams that qualified for this year’s World Cup—Brazil, Portugal, Australia, Croatia, Holland, Mexico, Korea and the United States. Net proceeds from Bearbrick auction of the collection of eight life-size figurines will be donated to ninemillion.org.