Bahamut's Bonnet (3.5e Equipment)
From D&D Wiki
A bonnet of scale and steel that fits snugly over your scalp, tucking away your hair nicely. At once, you become part dragon, well maid-dragon at least...
- costs 1,129,320gp
A translucent apron of phantasmal scales cascade along the front of your body, laying themselves over your existing armor, and granting a bonus of 1/5 times your current ac (if your ac is 20, the apron gives +4) This lasts until the end of the encounter, at which point the armor fades, leaving only the bonnet, which provides 1/4 of the apron's ac bonus. It can summon the apron again after one day.
"I feel very silly."