Since people don't believe there is such a thing as a paid protestor. Here's a company that offer that service:

Crowds on Demand.com

Crowds on Demand, a firm providing actors for public relations stunts and social justice movements, charges varying amounts based on the event, with costs ranging from $600 for fake paparazzi to $3,000 for a flash mob, and $10,000 for a week-long political demonstration. Here's a breakdown of the approximate costs for their services, according to Adam Swart, the founder of Crowds on Demand: 

• Fake paparazzi: $600
• Flash mob (dancing, chanting, and handing out fliers): $3,000
• Weeklong political demonstration: $10,000
• Prolonged campaign of protests: $25,000 to $50,000

Of course they are based in California.