It's a shrink ray

A flash of light engulfed her, and Molly felt an electric tingle crawl up her skin. The sensation lasted for a few seconds before it ceased, leaving her feeling a bit numb. As the light faded, her eyes tried to adjust, but she found that she was unable to see clearly. Light was filtering in from around her, but she didn't recognize her surroundings. Had she been teleported? Why did she feel cold?

The floor suddenly shifted under her feet, and she felt it slowly raise, lifting her towards a bright light above her. She passed through the light and realized that she had been inside a huge pile of fabric. Huh, it looked a lot like her... wait. Molly looked down. She was completely naked! Her hands snapped to cover herself, one hand covering her chest and one in front of her groin. She was standing on a metal platform that was being slowly elevated out of what looked like a giant pile of her clothes. Molly recognized her shirt, her pants, even her nice underwear, but it all seemed to have grown by a factor of ten. Or rather... no.

"It worked!" Molly heard Max's booming voice exclaim, and she looked over and her heart stopped. Max was giant. The table was huge. The room was massive. Molly's fears were confirmed; she had shrunk.