iPad Pro pencil cap and adapter retainer

Got an iPad Pro & Apple pencil for Christmas, cool stuff. But for charging the pencil you need to remove the cap and plug in the gender changer plug and then its very easy to loose one of the little parts in this game. I found [this](https://www.thingiverse.com/thing:1158446) here on Thingiverse but that design is only for two parts, so here it is, a retainer for all these little parts.