I give out grocery tote bags that have my logo embroidered on them as door prizes. They are great bags to have and relatively inexpensive - the bags are $6.95/ea plus shipping and make great door prizes at networking meetings.
If you wish to purchase one with YOUR logo embroidered on it, they are available
here from Queensboro. There is no charge to digitize your logo and they have a minimum purchase requirement of 4 items! I have also purchased tank tops, aprons, a padded laptop messenger bag, and multiple other items from Queensboro. The embroidery quality is excellent and the warranty can't be beat.
I also bring brochures (llc basics and small biz tax info) and postcards (my mailing version) and leave them at the sign in table (if there is one, of course) at networking meetings for anyone who is interested.