Jeff de Boer likes armor. Many people do.
Jeff makes armor. Not so many people do that.
Jeff makes armor for cats and mice. Nobody else does that.*
Jeff de Boer studied metalsmithing, armormaking, and jewelrymaking as a young art student. I can tell he also paid attention in history classes, because the armored suits he makes for cats and mice are called for varying martial activities, and show a playful use of period-suggestive detail. Well, peek at Gladiator Mouse and you'll see what I mean. Or my fave, Persian Cat. Feast your eyes on the entire gallery of them.
And peek at his other work too -- it's very fine, and yet again shows good attention paid to forms of the past.
*And if they do, I'm dying to know.