Square Cupcakes?

Can you believe I had never seen these before yesterday? Do I live under a rock, or what? They are so freakin' cute! Especially because they're not your regular run of the mill round cupcakes.
I wouldn't mind having these at our wedding. I was watching the Martha Stewart show yesterday (on destination weddings) and they showed these square cupcakes. I immediately looked them up online. They also go by "mini cakes", but I'm not really sure that they are one in the same.
Very pretty, but not sure if these can only be done in fondant..........

Pic sources: cakethat.com, photobucket

Cupcakes, Cake or Fake Cake?

So I am now considering going with :
a) a cupcake tower, with a small cake on top for us to cut -OR-
b) a partially fake (DIY) cake with the top tier real for us to cut and sheet cakes in the kitchen for the guests


My Mr. found a friend of a co-worker who does cakes, so I will email her with what I want (my original idea of a small real 2 tier cake for display and sheetcake in the kitchen). Depending on what THAT estimate is, I may have to consider these other options.
Has anyone else done the fake cake thing?