I love doing echo quilting with this type of block. It really emphasizes the animal. I might do a long zigzag in the frames or just a SITD (mainly to give a nice definition on the back). The sashing and the border could be anything you are comfortable with. The zebra lines aren't too linear or to curvy, so either type of stitching would work. I think if I did a SITD in the frame, I would probably just do a gentle curve down the sashing. This would be simple but enough stitching to allow for a lot of use (and abuse) from a child. BTW, love this print, the animals are just silly enough.