Yes i like to keep the plants on my desktop table but not lot of them only one plant which is very greenish plants.
I used to have it at my old place... I also see some of my co-worker put betta fish tank on their desk..
I never keep any plants in my office and never will because it gets on my nerves. At my mother's house she has roses and plants all over (she has a plant that's very alive but is almost 20 yrs old - she takes extremely care of them) when I visit my mother's house, I cringe looking at them or being around them. It's just that I dislike them because of being in the way.
Yes I have put on a red rose flower pot on my office desk at this moment and change it frequently, I believe it brings good luck.
when i first starting working i thought it was weird for people to have plants in their office but i know realize how therapeutical and how much more beautiful an office can be. ITs a great cheap way to make your office smell and look better