Snails can spell as well as roosters can. This divination method traditionally uses fireplace ashes. A more potent version might involve writing your queries on paper, burning them and using those ashes instead. For a quick fix method, use flour.
Make a smooth, even bed of ashes or flour.
Gently place a snail in the center of this bed.
Allow the snail to wander as it will and leave the circle when it chooses.
The shape of its trail will indicate initials, letters or images to provide your oracle.