Backwards Baseball Cap
In North America, and many other places, wearing a baseball cap backwards is extremely common among young men, and is also done by people of every age and sex. It's crazy that there is no ready-made product for this common article of clothing. Yes, there are ways to reverse a ballcap for highly skilled 3D artists--but there are complex and difficult ways to do just about anything in the 3D universe without Daz. The reason Daz exists is to make life easier for those of us who need to devote our time and energy to all the other aspects of 3D art, and don't have time to fiddle with custom clothing morphs/conversions.

Comments
These have backward caps in them:
https://www.daz3d.com/bw-lucas-everyday-headwear-for-genesis-9
https://www.daz3d.com/ajc-pro-skate-cap-for-genesis-8-and-81-females
https://www.renderosity.com/marketplace/products/170453/baseball-cap-g8-male
https://www.renderosity.com/marketplace/products/170408/baseball-cap-g8-female
Of course, https://www.daz3d.com/dforce-gym-boy-6-pack-outfit-for-genesis-9
The G9 one (Lucas Everyday Headwear) doesn't have a backwards cap. Not sure where you saw one, but I own it and I just checked. It has a cap, but it doesn't turn around.
Ah, my mistake. one of the promos looks like it has a backward version.
changing the Z scale to -100 isn't complicated