Free tool to create 3D book covers

I have found this webpage which looks quite interesting for all Authors. 

It provides a quick, easy and free way to create a 3D book design of your plain covers that you can use for any of your promotion campaigns:

http://diybookcovers.com/3Dmockups/

Hope you like it and find it useful!

(note, I am not affiliated to that page, just I liked it and wanted to share it)