What are some uses of part 93589?
This part was introduced for licensed polybags in the Racers Ferrarri line (30195 and 30190):





It has been used that way a few other times since then, but it has also been used a few other ways in released sets.

It was used in 95012-1 BARC Speeder with Sidecar to round out the back end of the CIS speeder nicely:



And identically in 75017-1 Duel on Geonosis:



The part was also used to create a nice nose for a dragon in 70736-1 Attack of the Morro Dragon:



It has also been used in a couple different City sets to round off aircraft components such as the engines on 4209-1 Fire Plane:



And the top of the Helicopter in 60010 Fire Helicopter:



This part has only appeared in about a dozen sets in six different colors. It's fun to have another shape to play with in models, and this part adds some unique possibilities to possible builds.