I also made both Ma and me a needle case for our dpns. I was inspired by this Cath Kidston knitting needle roll that I was given for Christmas. I love the Cath Kidston roll for my full size needles, but the slim dpns get lost in it. So I worked out the size of needle roll I needed for my dpns and set about making one, and then a second one.
This is how they ended up. I'm pretty pleased with them!