When one of the quests came out (i believe it to be the cloak quest but might be wrong) for the first few weeks it was possible to BOS them to the bank, quit the quest, pick it up take it home lock it down fast before it bounced back into your pack and then use a deco tool on it to get it out of your backpack in your house were your stood then after server up it became just "a brass ring" no quest tag and no bounce back. It worked with all the quest items, the stool being another one. BUT seems they got duped or everyone who knew about it has sold theres recently as there seems to be lots of all these quest items on the market.
On a side note if it helps theres a vendor on atlantic luna selling them for 1.5 mill each for the last 3 weeks
Thunderz