Stained Glass Afghan Square looks perfect if you looking for the effective motif to crochet the, for example, the blanket. This motif needs crocheters in rich projects, where colors are not only important but form and design. This is absolutely perfect based on sacral motif use on original stained glass windows. To be honest . not many patterns are in the web but we found for you two source. One looks as below first picture and second. Both patterns are available below. Read website and choose interested your design.
This pattern is available for free here
Another pattern looks more interesting and professional is below: