Mona Sammy (S06E28)

Endora unexpectedly interrupts Samantha's anniversary celebration and brings a painting for a present. The painting is exactly like the Mona Lisa with the obvious exception of the face which is unmistakably Samantha's. The artist's signature has also changed and in the place of Leonardo Da Vinci is Darrin Stephens. Darrin, with his usual modesty, goes along with the plot and doesn't reject Louise Tate's suggestion that he should be painting for a living. Darrin, whose real painting experience has been limited to painting the kitchen, turns away his first commission – that of painting Louise – on the grounds that he's a little rusty after years of inactivity. Upon her insistence, Darrin arranges for Samantha to cast a spell that would bring out the Da Vinci in him to enable him to paint Louise. (iTunes)