Accessories are actually super underused. You will need to do a little extra than just putting these parts into an accessory, but accessories are definitely a wonderful way to go about this. Some extra tidbits you’ll need to make your hat wearable:
Ensure it has a handle with an attachment in it (preferably HatAttachment)
Make sure to test that the positioning of the hat is what you want it to be. You can always test and edit by adding the accessory to a dummy character and repositioning where wanted.
All the parts of the hat should be welded to the handle and unanchored.
I feel like making a tutorial on accessory morphs now haha.