shaq size 22 shoe signed - available for around $1k

[joshmiller0]

https://www.steinersports.com/collections/basketball-new-arrivals/products/shaquille-oneal-signed-reebok-blue-black-size-22-sneaker-inscribed-hof-2016

espn article
http://www.espn.com/nba/story/_/id/17214779/reebok-release-original-signed-shaq-sneakers-size-22