Give back prestige?
You can have mine. It doesn't fit in my walls and I can't get it to march. It doesn't give me a bonus to food production. Nope, means nothing to me. I suppose I need it for some promotions but untill I get the 900 medals I need, that's moot.

Free Prestige. No catch, no gimmick. I might not understand why someone wants it but.. go to it.