It kind of depends what you want to do obviously but I vote for coin unique as it is a great little coin trick.
It has many routines available, in their hand, in a glass, in a matchbox vanishes where as the cig through is a in your hand (with very bad angles) one trick pony.
You can use the coin U in many different ways but once you have shoved a cig through a coin they have seen it and in my honest opinion it looks obvious what you are doing, just my thoughts though, don't let me put you off
BaB
...