1) Grab a tissue, fold in half and cut in a format similar to the format of the photo above
2) Cut several pieces.
3) Sew the flowers as shown in the photo. Go frowning to give a cool effect
4) Finally just sew the flowers on the clothes you want to customize. Go stitching and various flowers of different shapes. Be creative and have custom clothes. You can even think about making some pieces to sell.
Source: http://ajudantedaarte.blogspot.com.es/2011/11/customizando-camisa.html