Does anyone make a 1'x1' or a 2'x3' diffusor?

Hi Krell_man,
I second the DIY route for your Skyline made from wood and stained the way you want. Here's the best Skyline calculator that I could find that mimics RPG's patent:

http://www.oliverprime.com/prd/?show=calculator

If you use 1.5" * 1.5" blocks of wood, then you may wish to consider using the following in the link above:
* Prime number P = 337
* Primative root of P = 10
* # of columns = 21
* # of rows = 16
This will generate a 31.5" * 24" sized Skyline.

Or the following will generate a 36" * 25.5" Skyline:
* Prime number P = 409
* Primative root of P = 21
* # of columns = 24
* # of rows = 17

I've built several and one can be seen on my System page.
Good luck.
kevin