Paper, pen, two mugs (one for water, the other for coffee), a phone, headset, keyboard, mouse and monitors.
I like to keeps it distraction free. I used to have a little magnetic thingy with pieces of metal formed into dollar signs, but the pieces of metal rusted. I also had a pin thingy (the ones where you could put your hand and it mimics the shape), but it broke (after many years of people playing with it)