The piggy banks are all diving on the same 'asset'. The asset sunk. The piggy banks sunk with it.

All photographic sources stock.xchng
Other material, own 3D renders.

For the 2nd cover these sources were used:
www.morguefile.com
www.flickr.com
www.sxc.hu

http://morguefile.com/archive/browse/#/?qury=piggy%20bank&terms_all=piggy bank
http://www.flickr.com/photos/hugegaragesale/2913076747/sizes/l/in/photostream/
http://www.sxc.hu/browse.phtml?f=download&id=156465

Please view alternate entries,
I am more than willing to make modifications

They went the same way, they saw the same thing, they acted similarly, and they're all get trapped.
Good luck to everyone.

When all banks follow the same investment, all that awaits them is a dark and infinite abyss called "failure"...

Digitally painted illustration.

Slide 1: plain picture
Slide 2: example of use as a cover
Slide 3: close-ups