Would it be possible for someone to make a mod that adds a second set of cosmetic armor slots? So you can have 2 cosmetic items of each worn at once, with one showing over the top of the other. For example, having a Dapper Hat item in one, with a Monocle in the second. Or, my floating halo in one and and a scarf in the second. You get the idea... I tried doing a search for something like that, but was unable to find anything.
Not sure if what you want is possible but something you could do is mod in your own item that combines the appearances of both the monocle and the hat.