The Metroid amiibo Samus Aran & Metroid 2 Pack is in stock at Gamestop, sold out most places.
https://www.gamestop.com/accessories/metroid-amiibo-samus-aran-metroid-2-pack/149654
I think I am using this forum right. I'm selling some hard-to-find Nintendo sneakers on Ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=330246537217&Category=63850