Selling stuff back to uShop?

[Creed]

Is there anyone out there up to writing an add-on that will allow users to sell back items they've bought for a reduced rate, admin selectable? I've looked and didn't see this already, or I wouldn't be asking. If anyone knows that this exists, please feel free to link me to it :)

[GameTavernNeo]

Is there anyone out there up to writing an add-on that will allow users to sell back items they've bought for a reduced rate, admin selectable? I've looked and didn't see this already, or I wouldn't be asking. If anyone knows that this exists, please feel free to link me to it :)
And how about an action to buy invisible mode?