Swimming pool liner decals

[odlaw]

Hi,
Does anyone have any idea on what materials are used, how long they last etc. I have seen these advertised and wanted to give it a go.

 

[bayshorecreations]

http://www.aquadecal.com/VinylVideo.html
In this video it says it is some kind of lexan with 3M adhesive.
With my luck one of my customers would drown installing it.