What shall I paint?

What shall I demo at the Fredericksburg Art Guild Gallery on Fri Oct 5? What will the crowd in town for OctoberFest want to see?1. small, simple things they could try themselves at home?
2. a big complex painting that will take up the whole day?
3. whatever 3 or 4 paintings I find myself in the middle of, at the time?
4. pieces designed to demonstrate various materials or techniques?
5. HIll Country themes only?
6. OctoberFest themes?

???

Thanks
Nan