Seller cagedheat3 on eBay has a few Nintendo promos. Some are recent and some are from an older gen.
Star Fox STARCOMMAND Promotional Decal – $6,99, 2 bids so far.
Golden Sun Dark Dawn for DS Promo Poster and Decal Set – These are actually still around retail stores. I don’t think i’ve actually seen the decals but the poster yeah. What is up with Nintendo and the double D’s? 😛
Donkey Kong Promotional Large Decal – I’d say these looks like a DK Barrel Blast promo.