First, set up a suitable hole- those predrilled holes in your desk (for computer cables) work well. Set up a few hazards around it, such as stacks of unfinished work (everyone has some of those), coffee cups, whatever you can find.
Next, find a set of clubs. Bic pens (drivers) and creatively bent
paper clips (irons, wedges) work well.
Now find a ball. Balled up and slightly moistened paper works ok, so does a pencil eraser (for those loooong drives).
Lastly, make yourself a teeoff spot. Mousepads work good. This should be on a different desk across the room, hopefully well out of view of the boss (who is still wondering why there are all those unfinished piles of work laying around). Line up and tee off! To shoot, just bend back the pen or paper clip and "snap" into the ball.
FORE!! Now get back to work.