This is a Scooby-Doo bubble blower from the Warner Bros. Studio Store. It is battery-operated (takes two "AA" batteries, not included). It comes on a card with a bubble dipping dish and a 4 ounce bottle of Scooby-Doo Bubbles made by Tootsietoy.
Directions say to pour bubble solution into the dipping dish. Dip the tip of the bubble blower into the bubble solution. Press the trigger lightly for a continuous stream of bubbles.