This is a Flintstones 1994 KilnCraft England Staffordshire Tableware Magicolour ceramic coffee mug.  The cup says "The Flintstones".  It pictures Fred Flintstone on one end and Pebbles on the other...there is a soccer ball in the center.  When the mug is filled with warm liquid, the 2 black caves change and one pictures Bamm-Bamm and says "Goal" above him.  The other cave changes to show Dino laying on the ground...looks like the soccer ball hit him in the head.  The original soccer ball fades partially to look like part of the cave.   The ceramic mug measures approximately 3 1/2" tall and 3" in diameter.  The bottom of the mug is marked with raised letters.  The mug comes with the original care instructions.