This takes me back to the days of working at a fledgling Minuteman Press. I answered phones, handled walk-ins and also did paste-up, stripping, shooting film on the vertical camera, etc. We had one customer who had started her own "Medieval Times" sort of business where she'd travel to your event with her troupe of belly dancers, jugglers, various renaissance type performers & also bring the themed food. We were doing all of her brochures & collateral but many times instead of paying, she would give us tickets to some event she had booked.
Needless to say, there are only so many turkey legs & juggling acts you'll accept in lieu of payment before cash becomes necessary.