how to make quest items dropped from mobs sellable.
(Basically so you don't have unneeded items clogging your bag
Well here is how to do it:
- Create the item and it's description. Set the scope and occasion to none/never
Then set it to be consumable. (

- Now to test it in your game. Open your game file in RPG Maker VX Ace and create
a erase event under it. (I recommend you put as parallel process if you set it to autorun it may not follow the erase event
and basically freeze your game; since autorun disables movement)

- Start your game and check to see if the item is in your inventory. (You can also use a treasure chest to gain the item
a worthless item you want to sell it to the NPC.

- Open the shop process by talking to the NPC. As you can see the item is sellable. Select the amount of the item

Well there is how to do it. Also this can be good for random junk items that mobs keep spamming you with such as
bat wings, eyeballs, etc. Or if you have a alchemy system and want to make good junk to sell for more cash. Also
your junk items can be normal items also. Just change the Item Type to normal.