I often think that real-life is closer to fantasy than many people think.
Looking at some of the helmets and armours on these lists, I doubt anyone need worry if their own literary versions could be considered too over the top.
- The Weirdest and Fiercest Helmets from the age of armored combat
- Animal-Shaped armor for the eternal battle of cats vs mice
- Medieval Suits of Armor
P.S. The cat and mouse ones aren’t real (really?), but they are great pieces of art and surely must provide inspiration to some people.