As a GM, I'd like to give my players a lucky item, one that improves their dice rolls. However, I don't want them to immediately realize that the item is improving their rolls.
One thought I had was to give them loaded dice with which they could (unknowingly) play.
We've always used physical dice whenever possible, and I'm not sure how I'd tell the player holding the item, "no, use these dice" without it being suspicious.
That said, has anyone ever used an actual loaded die that reliably improved a player's luck?
One thought I had is to make a decorative dice tower that - somehow - blocks the dropped die and drops another one in a known configuration, making it more likely to land on the number I want. But that might be a bit much for an RPG campaign.