Prosthetic Socket Prosthetic Coverings DIY?

Prosthetic coverings DIY? - prosthetic socket

I'm in a play in 3 weeks. I have to wear a uniform of the 1940 nurses, but my prosthesis is not yet covered.
It will not be covered because it is easy to take off my testing and rehabilitation is super slow. Thus, any suggestion of a fair coverage of DIY is not too expensive and look good on stage.