
your local community centre may employ you on a sessional basis to provide this and they could charge low rates due to having a budget for it. They are likely to have a childrens/youth work budget and would shoulder many of the costs. If you go alone you will need to look into public liability insurance etc but if you go through another organisation you will be able to come under their £5million or whatever the standard amount is now.
Each local authority/borough should have community safety money and although it is called different things in each area you may be able to tap into that as it would come under the heading of building stronger/safer communities etc and will keep children off the street.
The Big Lottery fund is an option and also if you go to your local volunteer centre they should be able to point you in the direction of various trusts and funds. There is all sorts of weird and wonderful trusts out there e.g. there might have been a Mrs Smith who loved dancing and left mega bucks to be spent of people called Smith who want to start dance schools/classes.
Good luck
The artist formerly known as cheekychow! - with a staffy and a rottie not a chow, but very cheeky!