I have made a media center Xbox and cut a window hole into it so you can see the insides and I am wanting a flush mount window but it is a complicated window and I can't cut plexi glass into the shape so I was wondering if there was any product that I can do something like the following:

Cover the top with Ceran Wrap or something then turn it upside down so the Ceran Wrap is on the bottom then pour a mixture of something in the window and then let it dry and then peal the Ceran Wrap off and it is a Flush Mount window?

Is there any thing out there that allows me to do this

Also I want it to be completely clear like plexi glass

 

You could try some sort of wax or wax paper barrier under the window, then fill the window with some sort of clear polyurethane. Once dry you should be able to remove the wax/wax paper then sand and buff any imperfections or residual wax left behind.

-Rick