I want a Random Post Button for a specific Category

I have a blog @ https://h4d.neswblogs.com and I post viral pics and videos. I would love to have a “random pic” button that showed random pics from my “funny pictures” category. Can someone please assist?

I do not need a list of random posts, I am looking to make a button that goes to a random post from a certain category.

A list is not needed.