Badge sticker

From Conbledegook

A special sticker you can put on your badge to indicate that you are a gopher, a panellist, that you support a particular bid, that you come from a particular country, etc. Ribbons are a similar idea.

Redemption also prints special stickers for panellists that go on the back of their badge with a list of all the panels they are booked to take part in, and Orbital 2008 intends to continue with this practise.