Express your love for Fedora in every email you send! Add a color "Face:" header in your email client using a very optimized 48x48 Fedora logo. The file is 628 bytes, and expands to 846 bytes in total when base64 encoded and after adding the "Face: " header name.
If your email client does not have a way to insert a Face header explicitly, but lets you add a custom header, here is the line claws-mail created for me:
Face:
iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAMAAABg3Am1AAAAAXNSR0IArs4
c6QAAADNQTFRFgE1yJD1tKUFxLEh9MlOOP1aEOmetS2eaO263VmyVWITBbo
GkjaTHrr/Y0dzo7fL1/f/89Nam/gAAAAF0Uk5TAEDm2GYAAAABYktHRACIB
R1IAAAACXBIWXMAAAUzAAAFMwHIE+vbAAAAB3RJTUUH2wUaDwEFIUT8NAAA
Aa1JREFUSMetlumygyAMhSVA2GR5/6e9KIsgoHbmnh+dTns+EoEkbtsoqNo
+CG760f6CwEJf7SRphQx24FwpxTklU2Lwc2NdiHI7pxNiWF7ZULTjSAz5G1
/9wWlktCeGfExoZKWUrIsx+FVe3zvnvNUoZZ/VkJBLdmuUMkbLQ9gktUjIG
3qeA8WTaEIMQNogk84MMnE9xeCn5xO46xdWcoI5IHwKcK2AbU6w2CMxA2AK
pEPj/wXAO9A8dCTegbKtc+A4qR5oD+4GRAflUQkw8TuNSvaSUQNQhtL60Mv
vN38FjoVwv/svgkEPnIHRhlH2/IdBD9AUdg/zCDWfAiS/lNr6Q9l6yiJGO+
mBvBEYK1fExpLL3xwSNLpJ19SuhFhuXPUcahvrmmD8wLRvZHk1bkA+eQKfg
T7AI7A1APwIjLd10fcnKaUbAi9AfWiS2pgji8Fy31aSA9gHgOULnA4q921F
FpOrXg1EJWLx5JKwy0lXihy1O1RunlhOxtIWdFcMZj1Jc3lK7ZoiePCXimP
yiuDU06SuPUBkwhn+ONib33kcN4rTt/cAeNYPbxhz9x/7pCg2het4mQAAAA
BJRU5ErkJggg==
OK, this means you'll bloat every email you send with another 846 bytes. Here's how you can compensate:
1. Do not send HTML email. Ever.
2. Do not use a signature containing all your personal information.
3. Do not use large/useless disclaimers in your signature.
4. Make them count! Do not send crap or useless email. :)
