Image imported from derpibooru
Original Description:

Description from DeviantArt:
Nurse Rainbow Dash is always dressing in style! I almost made this a Mad Scientist style costume, but it was too difficult to make spooky scientist goggles that would work with multiple pony hairstyles… Rainbow Dash is absolutely rocking the nurse version, though! If you’d like to get one of these with your own pony, DM me on Instagram or order one direct through Ko-fi! All the costumes and example images can be found in both those places! Thanks for looking, and oooo~ Happy Halloween!