A municipality may defray the expense of improvements by special assessments for the promotion of business activity and new business development through any means not inconsistent with the purposes of this chapter, including advertising, public information, marketing, maintenance and decoration of public places, promotion of public events, furnishing of music in any public place, providing professional management, planning, and promotion, and the general promotion of trade activities. The governing body of the municipality may make and execute necessary or convenient agreements to exercise the powers and functions under this chapter, including contracts with any entity. In planning an improvement project under this chapter the governing body may include any work and materials which are deemed necessary or reasonably incidental to the project. A municipality may not issue warrants, bonds, or any other form of indebtedness in anticipation of the levy and collection of assessments under this chapter.