Take a look at the Lucidity Institute Inc. They have some interesting stuff and equipment to help enter the dreaming state.

In 'The Eagles Gift' [cc6] Zuleica said that the outsides of the calves are important for dreaming. La Gorda and Castaneda are made to sit in some canvas sacks or ponchos which are very soft and stimulates their calves.

Zuleica says that if dreaming is to be done indoors, it is best done inside a coffin like crib.

Crystals or metal pins of the thickness of ones fingers. Three on each hand, between the fingers. Press until it is almost painful [cc9].

Gold ring, a reference to the ordinary world, an anchor [cc9].