Stupid question I know (Magic Armor related)

[Burn56]

I got some cool magic armor last game.
+1 Impervious Deathless Chainshirt
Sounds great right?
Well, is there ANY way I can make it mithril?
I was wearing a Mithril shirt, with a max dex bonus of +6
This new shiny armor? Max dex of +4. Well I'm a Dex based melee Oracle.
Can anyone come up with some way, (other than begging the GM) to PAY for the Chainshirt to be Mithril?

[The Human Diversion]

Short of a Wish or Miracle spell, you're stuck with it being non-mithral. Not even the 8th level Polymorph Any Object spell can help you - it specifically says so in the text.