Currently, the command system has substitutions like x/y/z coordinates and player name. It would be nice to add similar substitutions for the current display name of the custom item stack. (Especially when players can rename the item.) It would be best if there are 2 substitutions:

• The full display name
• The display name without color code characters

This would be interesting because it basically adds player-giving text input (players can rename their item stack and then right-click it).