Pistons McGee's shrink ray

The shrink ray was a device created by Pistons McGee that could shrink anything and anyone down to size, although preferably cars, which was used for his car theft scheme.

Physical appearance
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Powers and abilities
The ray could reduce its target(s) down to handheld size, but also be reversible.

Season three
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Appearances

 * Scooby-Doo and Scrappy-Doo
 * 309(a). Disappearing Car Caper