Vintage McDonald's Batman Forever & Flintstones Glass Mugs Set. The Batman mug was produced in 1995 and the Flintstones mug was produced in 1993. They are both made of thick embossed glass and are in very good condition. They would be great to add to a collection of vintage restaurant glasses, McDonald's toys, cartoon character collections, or just simply a novelty to display in your home. Both mugs were made in the USA.