Creality Ender 3 Upper Filament Guide

A 'superior' upper filament guide for the Creality Ender 3.
This design assumes your filament is fed from the standard location on top.

This design is a mashup of a long arm snap on filament guide having a simple hoop on the end (which after one spool of printing had a noticeable groove worn in it) and a lower filament guide that uses a 608 ball bearing.(very common, used on skateboards, and available for less than $1 each)

After merging the two designs I tweaked the angle a little and added some gusseting at the end for support and to eliminate a perceived 'weak point'..