This would be one heck of a drive for it, but I did find one. Was looking myself, I love the design! Best search terms seem to be hibachi pig. Bbq pig and grill pig get way too many unrelated results.
Just from a quick search, I found a thread that saya Cracker Barrel Restaraunts were the source. There was also a cow version. It looks as though they may no longer be in production. Might stop in if you get by a CB, you could get lucky and find one on the shelf.
"Oh, let's just stay here and sing camp songs for a while." 1966, My mom in Isle Royale, MN, in a women's bath house with a momma bear and two cubs outside the door, and three tired kids trapped inside "Dad! Dad! There's a bear outside!" 1967, Lolo Hot Springs, MT, in a tent-top trailer "Oh, no, there it goes!!" Nov 10, 2012 as Penguino I blew over in high winds