As in if you pick up the item, it will appear on your char? Well, make a new ability based off of something with no icon, like armor bonus. Set the field that adds bonus stats to 0. Now go to the Art - Target field and add a model (whatever you want attached), Next, set the Art - Target Number of Attachments to 1. Then, go to the Art - Target Attachment Point 1 field and enter a new string, with the name of whereever you are attaching the item (hand or weapon for swords and shields, face for helmets, chest for armor, overhead for things floating around the unit, etc). There you go. When your hero picks up the item, it will appear, and disappear when he drops it.