There are graphic design websites that release themes and website graphics as PSD files. Some examples:
Graphic elements: http://www.wordpressthemeshock.com/ribbons-set-free-psd/
I've looked at the PSD files in GIMP, and each element is nicely layered, with sublayers for the text, etc. The layers are also the size of the elements themselves. Is there an easy way to isolate out a layer with its sublayers, and create a new PSD file with the single element?
I can get access to a machine with Photoshop if need be, but if this is possible in GIMP, or another free tool, that'd would be great.