Absolutely follow the other suggestions people have posted, they are very good. Also, can you tell us more about what you have done so far to raise funds? That way we can stick to improving those efforts or starting new ones.
I'll include a recommendation to do something that my team has done for the past years that I think would really benefit a teams like yours desperate for funding.
We assign each and every student on the team 2 - 3 local business in the area that they are required to visit in person and give a short presentation about our team's needs to the manager / owner. Business like auto repair shops, AC companies, hardware stores, machine shops, etc. We spend a meeting or two training everyone in depth about the points they need to talk about. We send them with
this script to help guide them if they are not great at presenting. We have them give the manager a copy of our
Sponsor Packet (made by a mentor and student Sept. 2013) and our
Flyer (made around the same time) to keep. Most people think this is a ridiculous idea when they hear it, but it really saved our team last year as it brought in over $1,500. The setup for it can be done by one person, and then your team members fan out to work on doing the actual requests independently, freeing up team leadership to pursue other opportunities.
The idea is really that you have plenty of students on the team with plenty of time that they aren't spending in actual robotics meetings. Why not put that time to use fundraising and get them to canvas local businesses. There are all sorts of other benefits to this like building community support and awareness and teaching your students presentation skills, but as your main goal is funding I can tell you that it can absolutely work. We have equal success in rural, urban, and suburban areas.
Your team may initially balk at the idea of having to pound the pavement to make the team work, but if they are really as excited as they seem in that video, you can probably convince them.