Have you heard about Posca? Unlike the normal felt-tip pen, Posca can be used on a wide range of surfaces such as plastic, metal and photographs. It is also possible to write down POSCA on clothes. That will allow you to make your personal items such as ecological bag, shoes, or caps. The pen's size ranges from the fine nib at 0.7 mm to the thick one at 15.0mm. With this, you will be able to write and draw in expression of you imagination.