There are a few reasons why you might not see the trash can icon used for dusting an item.
- You can't dust if there are fewer than 15 items on the current screen of your village (villages can eventually be expanded to multiple screens). We don't want people to accidentally ruin their games by destroying all of their items.
- If your village has multiple screens, you could pick up the item and move it to a screen with lots of items, then delete the item there.
- There are certain important items, such as the Post Office, that we don't let you dust because you're going to need them.