I was wearing the teal-green hoodie with the "Foster's Five" dancing on the front on Christmas Eve, and when my aunt arrived from the airport and came to give me a hug, she immediately noticed my hoodie and said it was cute.
And then on Christmas morning, I unwrapped the Bloo/Cheese blanket, and my grandma laughed at Cheese's smile. "Just look at that smile!" I was delighted!
Neither my aunt or grandma have any clue the show exists, but they noticed my "merchandise" and commented on them.