Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Sep 22, 2011
divinewarlord on the GameFAQs forum appears to have discovered quite a little trick.
The video goes through step by step, but the gist of it is that if your inventory and warehouse are COMPLETELY FULL when leaving the Item World, the item you were inside will be sent to the Rosenqueen Stores in the base area. Normally you can only buy back one copy, but if you purchase the item through "Try On" instead of "Buy," you can leave the store and come back only to find the item there to purchase again!
The main use for this, as this video indicates, is duplicating Innocents en masse.
You cannot duplicate an item unless there are either floors left available in the main Item World or chances to Reverse Pirate remaining, as the glitch requires that you be inside the item you want to duplicate. This also means that only equipment items and weapons can be duplicated through this method.
This video uses a Pot Lid, which is very low-rank and thus easy to clear and cheap to purchase in large quantities.
NOTE: Apparently you can do this trick even faster by reincarnating a character who is holding the item as a class that can't equip it, again pushing it onto the vendor. Thanks to TrenchcoatFlash for figuring that one out.