Turning dark hair neon pink temporarily?

So for Halloween I want to be Zarya from Overwatch. I've seen wigs for sale online but they look like crap. My hair is already very short and could easily be styled like hers.

The problem is my hair is super dark brown.

While I wouldn't necessarily mind bleaching my hair again and going bright pink, I'm currently job hunting and can't risk having pink hair at an interview.

Is there anything that would work for just a day or two and wash out?