I was stuck in the lack of SSS for Sweet, Pure, Lively and Simple, so I decided to make my own.
Check the status bar of the items - if the SS is pretty close to max and you got enough resources, go for it!
Pay attention to the charm points stated in each item though as NOT ALL ITEMS got charm points that no matter how many palettes you unlocked, there's no change in the status bar.
When there's charm points in the item, go to Dye screen and you can check the charm points at the bottom left.
Unlock half of the palettes gives 5% boost which usually good enough to an SSS upgrade, when the original item has a bar very close to SS max.
Unlock all of the palettes gives 10% boost.
Here are some of my manual SSS items I made which really made my day: