Rasterbate and Kiss
The coolest site to make giant images; Rasterbator.net is now integrated with KissPrinting. Rasterbator.net allows you to upload your image and then select how large you would like to make it. It then rasterizes your image and tiles it on multiple sheets so that it can be printed more easily. With this new integration between Rasterbator and KissPrinting this process has gotten even easier. Simply go to Rasterbator.net and upload your image, then select the KissPrinting option. After you have customized your image it will be automatically transferred to KissPrinting and added to the shopping cart where you can check out. In just a few days your room will be redecorated, for less than the cost of a fresh coat of paint.