Can my outfit be saved?

If you can find a sharpie type pen which matches the color of the outfit, you can color in the spots. Try on one inconspicuous spot first to see if it blends in well. If this works, you will have to recolor occasionally as it fades in the wash. I did this with a pair of black jeans, and they have been fine for almost a year now.

You didn't say whether the outfit was one solid color or a print, but I guess we can assume it's predominantly a dark color so the sharpie pen idea would be my first solution. However, you could consider dyeing the whole outfit with Rit Dye in the same dark color or a shade darker. Good luck!