I then cut it out and flippped the front so it was 'inside out'.
I pinned the sides together...
I turned the fabric right side out, so the picture was again on the outside.
I took an old pillow, cut it open and started to pull apart the stuffing.
Stuff you pillow till it is the thickness your desire. Remember that pillows flatten so you may want to add a little extra for wear.
Here is the tricky part. Take the section that is not sewn and fold it in on itself. If you know how to do an invisible stitch do so now, other wise pin the pillow shut and sew. I like to start at the corner and go about an inch past the opening.
And your done. Your favorite t-shirt is preserved!!