I have one that I'm using on my vB forum (using vBadvanced) that I would like to use after I convert to XF. I don't want someone to just recreate it for me for XF, but rather create a tutorial so that I can do it myself and in the end, allow me to write my own add-ons later on.
I would suspect that this particular add-on is fairly easy to create, would have to pull info from a single custom user field. I'll show you all the code that it uses in vB so you can help explain what's different in XF from vB.
In the end I'll be more than happy to share both the tutorial and add-on for others to use, free of charge of course.
I'm willing to pay $25 via PayPal.
If you have any questions please feel free to ask.