There's an exclusive, limited-edition Dalek for sale, pictured below. Only 1500 ever made. Similar to the elusive, limited-edition Imperial (white and gold) ones, of which only 3000 were made.
How to make an exclusive Dalek:
1) Take the body of a normal Dalek
2) Put a black head on it
3) Make only 1500
And yet knowing this, I want it SO badly. Yes, we've discussed how I have a problem. No, there's no twelve step program. Yes, shut up.