Hey, Caio.
I’m afraid I should disagree with your first statement.
Just because there’s a lack and necessity to have an STA Clockworks Ring, I think that doesn’t mean the design has to be rushed or boringly simple.
I believe we all play the Game ’cause, above all, we enjoy the eye candy. From the Animations and Armor and Weapon Models, to the simplest of details, such as the Icons of the Items, even more if said Items are a common view and enjoy popularity, such as Clockworks Jewelry.
I like Nadia’s idea of re-using the Icon of Ren's Ring for the STA Ring, with none or very few minor changes. This was already the case of the Ring of Christmas Fairy, from the Christmas Fairy Jewelry Set, on Flyff PC.
I believe that, by re-using pretty well-designed, classic, already-existing, and proven (so to speak) designs, there’s much less or no room for new, and uncertainly to be, unpleasant designs (there’s a degree they’ll look good, but the same is for the contrary). Most people play the Game ’cause of nostalgia. Using already-existing and well-thought designs adds to that, plus it suppresses chances to mess things up, so to speak.
Have a good one!