how to add value to the school that sponsors us

[Bruceb]

Well, I think we have a good relationship with the school. The administration professes support and we have 3 teachers on the team with the metals shop teacher being our new lead mentor. He gives us his full support and he is the one that brought up these ideas after I mentioned we could use a new finger brake.
Just not sure the right way to do the funding.
We could buy the brake(and other equipment down the road) and sell it to the school on a zero interest loan.
We could donate it to the school.
We could pay the school some annual fee that is earmarked for equipment.
That seems like paying a sponsor to me and seems a little weird but may be the right think to do, just dont know.
Just looking for what other teams have done.
Thanks