What Should I Do to Mess With Our Interns?

I have a few ideas, but I want some suggestions from you.

Keep in mind there are limits.  First off we have two girl interns so it cannot get super weird with them. We have two guy interns, and that could be really funny.  The other problem is whatever it is they have to agree to it. I know, laws ... what a pain in the ass.

We have four interns and they are all very cool.

We have Alexis, Sandra, Adam and Vernon.

My first idea is for Vern cause he is tiny and it's not even all that clever, but just thinking about it had me cracking up. I wanna put Vern in a diaper with a bib and a binki and hold him like a baby and rock him to sleep.  BAHAHAHA.

What should we do?  What have you done to mess with your interns or underlings?