RSA: Card Stock

I want to use natural brown recycled card, as this can then be recycled after. I have had a little look and found that the craft shop in Leeds sells some. I want the cards to be square format as it will make them a little different to the usual, also it remains sustainable as the size they are utilize the who of an A size page.

I also found these card on ebay. Although they are more expensive you would effectively be buying  in bulk so it would work out cheaper per card.