Anker Portable Charger port cover

Port covers for an Anker 2nd Gen Astro2 9600mAh 2-Port 3A Portable Charger.

I asked my son, 12, to design something to keep dust and small miscellaneous items out of the ports when not in use; especially important when carrying in a pack . This what he came up with.
We printed the cap using Taulman 3D PCTPE and it works great.