I found this site while at work today/last night that uses the google image search to create a montage using images found during a search for an image you specify. The way you use the site is relatively self explainitory. I thought it was kinda neat that someone put this together.

The program uses 20 images that google image search kicks back as search results for the description you enter. You then can press the “create montage” button to have it automatically create a montage using these 20 images. The advanced options allow you to set the grid size and if you wish to use the original high resolution images or the google thumbnail images. Each image in the montage acts as a ling back to the original image, which allows you to see the full image.