These are just.... strange.  And I expected more from Dunkin' Donuts!
Listening to my youngest sister Naerim try to explain to my mom "bling bling" was just as funny as this sign...
("You see, Mom, when someone accumulates a lot of gold due to selling a lot of rap albums.."
Maybe they were thinking of Mary Poppins?  Or Woody... Wood-poppins?