Where do you find the bubble blower invention in Scooby Doo night of 100 frights?

In "Scooby-Doo! Night of 100 Frights," the bubble blower invention can be found in the Haunted Mansion area. Specifically, you need to navigate through the mansion and locate the lab where the invention is kept. After solving some puzzles and defeating enemies, you can access it and use it to help Scooby and Shaggy in their adventures.