Walter, I understand full well that all things are easy to he who does not have to do them, but :
For both airplane profiles and icons, I think it is your long-term best interest to open them up to user contributions and create an as-is, where-is library that allows users to contribute and to download what they'd like. Then you are out of the custom icon business and have a couple of features that further contribute to a sense of user community.
By the way, have you considered a tortoise or maybe a snail? Either would be suitable for a couple of airplanes that I fly . :-)