This is a super simple, yet amazing model I created. For the ones in the picture I used a 0.4 nozzle, but for an upgrade in quality you can use a 0.2 nozzle.

You will need earring hooks, which you can get really cheap anywhere, but here is some on amazon for only $5 here.

I recommend using a 0.2 nozzle in order for it to look good. I printed this on the p1s Bambu lab printer, but if you print with the x1 carbon make sure that it flow rate calibrates before hand.