Like a purpose built dueling area, sorta like a gladiatorial amphitheatre but smaller. Simple, spartan with just enough room to get decent use of force powers..... oh, and seats so your friends have somewhere to sit as they watch you getting skewered for the umpteenth time.
Two eggs sitting in a frying pan.
"Geez its getting hot in here", says the first.
The second one says, "Holy Crap! A talking egg!"