Benefits (How this will benefit the server and game as a whole): Immersion, it would look pretty neat.
Details (Description of how you think this would work, the benefits, etc): When a bandage is applied to a body part a bandaged sprite will appear over the clothes of the marine. Think of Gorman:

Implementation (Optional, if you have an idea how to implement it): Coding, spriting.
I'm also well aware this will probably be a backburner project.
Downsides:This seems to me at least like a pretty tall order to fill if it's even possible in the confines of ss13.