50% of the proceeds from these wallpapers will go to charity. I made them myself.

Bitcoin on Brown

http://i808.photobucket.com/albums/zz6/Eylrid/bitcoin_flat_w_coin_400-257.jpg
Size: 1920x1200
Full size: http://www.coinuploads.com/downloads/6939ed59-b577-47c9-97be-b6f961aefea4/gTa3N4QciTjU4o7ALJa8C7LN
Charity Supported: Bitcoin Foundation
Includes Bitcoin "Gold Style" Logo and part of "Logo with text" both found at https://en.bitcoin.it/wiki/Promotional_graphics

Nova

http://i808.photobucket.com/albums/zz6/Eylrid/Nova_Thumb.jpg
Size: 1900x1220
Full size: http://www.coinuploads.com/downloads/5af46c96-1bab-4c35-b080-460b0bd390b0/imZv36HdvwHFgMGOIuyhT6rc
Charity supported: Wikileaks

If you have a charity you would like to see me support let me know.