For the front side decoration I used cross stitching. I made also the corners at the bottom of the pen case to make more room into it.
I made the lining and used BiasTape to fasten the zipper. I also added recycled piece of satin ribbon to decorate the zipper and make it a bit easier to use.
It is my very own design and includes my own design of Pullover which I stitched last month. Free cross stitch chart is available for it.