I’ve got two pitches for a Transformed student. If either of these sound interesting, start asking questions once you’re ready.
Captain Marble
A typical student who went on a field trip and wished on some local Monkey’s Paw equivalent for “the perfect body - you know, like those statues of Greek gods”. So they got turned into… a living marble statue. Might be too close to Joe, though.
Seven-Year
The subject of an accident or experiment. It turned them partially invisible. Normally some percentage of their body is invisible, but it’s never 0% or 100%. They can force the invisibility into certain parts (like their head or arms or whatever), but it’s like flexing a muscle - it becomes harder and harder to maintain. So basically sometimes they look like they’re missing a limb, while other times you can see through the skin to see skeleton or organs. For this reason they stay tightly covered up most of the time. Their name alludes to a broken mirror - seven years’ bad luck.