Lecanomancy
It’s a divination using a basin of water as medium.

Lampadomancy
It’s a divination using lamp or torches as medium.

Libanomancy
It’s a divination by the study of incense and its smoke.

Lithomancy
It’s a divination form by means of precious stone with various colors or the study of patterns formed by the veins in a stone.

Lychnomancy
It’s a divination form by the observation of an oil lamp's flame, or a candle’s flame.