Maybe check if you've got a cosmetic trinket applied to your existing trinkets - it overrides how the base trinket looks. For example, you could apply the manaseer's monocle to your Mana Band, so whenever you wear that, the manaseer's monocle shows up on your face.
If any cosmetic trinkets are applied, there should be a tooltip on the trinket and is removable simply by putting it in a crafting table.