Dear Susan,

Thank you for your nice note.  Unfortunately, I do not allow my images to be made into  web-sets, stationeries, graphics, signature tags, tubes, avatars, or other ways in which the original image is altered, as it makes it harder to to keep control of copyright infringement.  Passing the images around complicates the copyright infringement situation further, so for the moment, I would prefer that you do not use my artwork for this purpose.

But thank you for asking... many people do not.

Best,

Sue