Sewing Needle Holder

I made two needle holders. Not sure which one will be best. I'll edit this when I print both and figure it out.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/cC4rLtwKely

Edit 9/7/2018: I printed the needle holder with square holes and it worked great, albeit a bit thin on the cap. It's robust enough to hold a few needles. To clarify, this holds needles used for cross stitching and sewing, not for injecting medicine.

Edit 9/24/2018: I split the two