If I had to make this then I would make a plain iced buttercream sheet cake.
Printed sugar sheets and a spatula through the buttercream for the swoosh.
gumpaste and use of an edible image.
See how the fifty is falling of the barrel? well yours would be "swoosh" like.
If that is not of help, you could google " money cake " under images in google.
on this one click on the two suitcases with money
AThank you guys for your help!