Rewards plugin would probably work well.
Here is one of my favourite gifs
The backstory behind this:
A couple of years ago @baris and I were working on a rather infuriating piece of software when one of the other devs posted this in Skype and called it the *productname*MAN
"this is what happens if you work on this product for so long"
I seriously have never laughed so hard in my entire life, it just went on and on and on for a good hour or so and I'm totally not exaggerating