Exhibiting at a to a UK event about recruitment in the public sector, need some creative ideas….?

Hi Guys, I work in as a marketing exec at a recruitment company. – Next month we’re going to an IT recruitment event specifically for the public sector and I need to find some cheap(ish) freebies….
Pens and mousemats are boring. There has been a suggestion that we go down the ‘environmentally friendly’ route….
Has anyone got [...]