I do the same with guest instructors. Sunday just gone I held a relaity based self defence class with a top guy from England who came over to teach for the day and it was very successful. Other options are small club tournaments, kickathon (sponsorship) etc are all great ideas.
We are all in the gutter, but some of us are looking at the stars - Oscar Wilde
We held a spronsored kickathon at the end of September to raise funds to buy our competition team tracksuits, we managed to raise £900 from 32 students who took part.
We did it as a mini competition with both junior and senior winners getting a small trophy. In 3 minutes of kicking the 32 students managed a staggering 10,000 kicks between them. An average of 104 kicks per min
There was no technical element to the kick the only conditions were that the foot had to return to the floor before it could be used again, and it must strike the pad to be counted.
There are loads of different marketing tools you can use too that will increase your student base and therefore your income from the school. We do daft little things like introduce a friend and you get a free set of focus pads after they have done 4 lessons and paid for a licence. I had to give out 10 sets of pads last month, but the increase in lesson fees more than paid for it.