Any municipality that has established an economic opportunity development district under this article may make, or authorize to be made by a district board and other public or private parties, development expenditures as will promote the economic vitality of the district and the general welfare of the municipality, including, but not limited to, expenditures for the following purposes:
(1) Beautification of the district by means including landscaping and construction and erection of fountains, shelters, benches, sculptures, signs, lighting, decorations and similar amenities;