I just love this concept from Evil Mad Scientist: make your own drinks coasters based on various characters in a range of fonts.

You can read up on the whole process, but basically the idea is to blow up fonts to large point sizes, print and then cut them out of some kind of material (MDF, [...]

It’ll certainly provide a little conversation starter and allow you to educate your non-techie friends and family on the fineries of RSS.
This set of 16 RSS-themed coasters will not only keep nasty glass and mug rings off your furniture but also advertise one of your favourite pastimes – browsing web sites via Google Reader or [...]