Hello!

I just got the crazy idea to make a "Hollister shopping bag" cake for my son's 14th bday this weekend..I want to try to make this cake for him..but have no idea how to..I was hoping someone would share some helpful tips.

1. how do I stack the cake?
2. how do I make the folds on the side?
are they carved?
please any ideas and tips will be greatly appreciated..

thank you?