Effects where cards change can be interesting, but in Frame a drawing (or writing) on a card is caused to change. This whimsical effect allows you to Visually morph what you write on the back of a card, make writing appear or vanish, and a host of other intriguing possibilities.
Here is one of our favorite effects:
A card is removed and black frame is drawn on it, with nothing inside. A card is chosen and lost in the pack. When you blow on the blank "frame" the identity of the card appears inside the frame. No covering the card, no weird sleights... it visually "snaps" into view. Amazing!