If you create the same directory structure that exists under /usr/share/icons you can replace all the icons for Tomboy. I took the SVG that foolswisdon supplied and converted it in inkscape to the required PNG files (16x16 for taskbar icons, 32x32 for application switcher, the orginal scalable icon is used for the panel). Attached is a TGZ archive that if you extract in your home directory will replace all the Tomboy icons with different ones.
** Attachment added: "Tomboy Icons for home directory." http://librarian.launchpad.net/4935165/tomboy-icons.tgz -- Tomboy making any ugly face at me! :/ https://launchpad.net/bugs/64102 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs