The next day, which is strangely sun-filled considering the local climate (must be because this is a magical grove) you are out for a short flight as you stare at the squirrels in the treetops hopping from branch to branch and gathering nuts. "Looks fun, doesn't it?", says another fairy. "Yeah, I wish I could do that too for once", you reply. "But you can! That's one of the beauties of our Fae nature. That same fairy dust that surrounds you can also be used on yourself for an amount of time of your choosing. As you are already engulfed in fairy dust, all it takes is a lot of wanting..." You concentrate and direct your will completely towards joining the squirrels for a moment, and brown hairs soon begin to grow out of your skin. Your fingers and toes become more clawed and your jaw pushes forward as teeth recede, making room for two VERY large front teeth.
Your entire face soon shifts to round brown eyes and small pointy ears, with whiskers just under your flat nose. Your legs have shrunk to little more than your feet, and the fur covers you entirely in a thick brown coat. The fur near your butt starts to expand faster and faster until you can see a huge brown tail completing your already rodential body, now making you a complete squirrel as the last of your fairyness fades away for now.
You forgot one thing though: you're still IN AIR! You plummet towards the ground, but quickly grab your claws on a branch, rebalancing in an instant using your tail. "How do you like that?", the fairy laughs. "Here, have an acorn and have fun being a squirrel" he says as he zips off, your nimble body quickly attempting to follow him across branches but as he ascends into the open air, you can only look at him. You consider that you might as well have some fun with the other squirrels while the magic lasts.