Right now many if not all of the other eternal weapon requirements involve grinding and repetition. Kill so many infernal enemies. Defeat 1,000 planar invasions. Kill 50 colossi. Etc. These are typical MMO time sinks whether we like them or not and rely far more on groups than on what we can do solo.
The particles quest is a glaring exception. It can only be done solo and is purely a test of PLAYER eyesight, reflexes, susceptibility to vertigo, computer connection and the like. Skill playing a class, gear and other character-related things are entirely irrelevant.
I didn't find the right solution from the internet.
Kitchen Equipment Video Examples