In researching bike racks, one only needs to click on the 1600 Flickr photos to see the variety and creativity.
The City of New York sponsored a competition this year and the following site will show you the unique entries. CityRacks Design Competition . The CITYRACKS program of New York City is a good place to look for guidelines for placement of racks. CITYRACKS is a program run by the New York City Department of Transportation that provides FREE sidewalk bicycle parking racks throughout New York City to encourage cycling for commuting, short trips and errands. Towns create racks that complement the total vision of the area. Other areas have racks that complement the business they serve. The imagination is the only limit.