I see a problem with that suggestion though as it puts image artifacts in the model and pollutes it with stuff that is not relevant to the subject at hand. i.e. the image artifacts have nothing to do with what I'm modelling. I just need to use alternative images in some diagrams so I can present the same concepts to some less technical folk like managers and executives.
That's what I use the OSA icons for. On occasion I need to make a diagram - for example how the Kerberos protocol works - less scary for the the customer's architects. So I make a "pretty" version with less boxes.