If you're feeling like showing your support for the work I've been doing, you could, for example, simply send me a nice email.
Or you could send a post card from where you live to me. Send it to Thomas Schwinge – Lerchenhöfe 2 – 71254 Ditzingen – Germany.
If you're feeling generous, you can donate goods or money for the work I've been doing:
For supporting the work I've done on the GNU Hurd project, you could have a look here.
If all these suggestions don't accommodate what you had in mind, then don't hesitate to contact me.