You look around the playground, scanning it for a target. Since these are high schoolers, almost everyone is just sitting or standing around, chatting. One boy seems alone, though.
You remember him. His name is Dean, he's your age (15), and he's the plainest, most average guy you've ever met. He doesn't seem distinctive at all. He doesn't have friends, since he's not in with either the nerds or jocks. He looks sad.
You decide you can help Dean. You point the wand at him and say, "Make his muscles grow until he's the buffest sophomore here except for me and Tim."
Dean suddenly bends over in apparent pain. Soon you can see the effects of the wand. His muscles are indeed growing, and soon his clothes are barely holding up under the strain. And then, with a tear so loud you can hear it, he's down to his underwear.
"Give him new sexy clothes to wear," you hurriedly say as you fire the wand again. Though you hate to do it, because Dean's body is amazing now. His pecs are big as melons, his 6-pack looks carved in stone, his arms are thick as footballs, and his legs are thick and shapely like Greek columns.
But soon Dean is dressed again. His former jeans and plain T-shirt are replaced with tight khaki shorts and an even tighter polo. So tight, in fact, that the first two buttons are left undone to expose Dean's glorious pecs.