Indiana Code Title 36. Local Government § 36-9-11-15

(1) accepted as a donation;

(2) appropriated from the general fund or from any fund derived from parking revenues;

(3) provided by the issuance and sale of general obligation bonds of the municipality;

(4) provided by the issuance and sale of bonds payable solely from revenues derived from parking facilities, parking meters, or parking mechanisms, as provided by section 16 of this chapter;  or

(5) provided by any combination of these methods.