The large roses are popular but if you don't want such a large one, how about a mini version? These are the same as the ones in my leaded panels.
They use a textured purple glass and a white streaky glass to completely change the feel of my red roses. This sun catcher hangs on a ribbon and would happily hang in a window.
Made using leftover glass from larger leaded light jobs and is constructed using the copper foil technique.