Inspired by
@Saracenus' heraldry idea:
Early in the "Fane of the Sun Swallower", the first adventure from
Ghosts of Dragonspear Castle, the PCs can find a magical shield emblazoned with a picture of an apple tree. Once per day, a person holding the shield can magically reach into the picture and pluck an apple. If eaten within 1 hour of being picked, the apple acts as a
potion of healing. In the hands of an undead creature, the shield loses this special property, and the tree appears withered and dead.
When I originally ran this adventure, I found a decent enough picture on the internet of a shield with an apple tree on it in gold. But now I'm having a go at recreating both versions of the shield with DALL-E. Of course, since I can't iterate on the same image, I can't get the shield or the tree to look the same. But this is the basic concept:
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