mbientlab Hi cpup,
This particular case was made by Tom at a Hackathon, which we later released with his permission on the Shapeways store. Therefore, we don't have the ability to change the design. However, if you just need a hole, I would recommend you try just drilling a hole into the plastic after you order it.
As a side note, we are creating a new MetaWear Coin version, which will come with a case that includes a lanyard/necklace hole of sorts.