Craft Cognizance Crystal( Expanded Psionics Handbook, p. 44)
[Item Creation, Psionic]
You can create psionic cognizance crystals that store power points.
Manifester level 3rd,
You can create a cognizance crystal. Doing so takes one day for each 1,000 gp in its base price. The base price of a cognizance crystal is equal to the highest-level power it could manifest using all its stored power points, squared, multiplied by 1,000 gp. For example, a cognizance crystal that stores 5 power points could be used to manifest a power as high as 3rd level. Thus, its cost is 9,000 gp (3 Ã— 3 Ã— 1,000 = 9,000). To create a cognizance crystal, you must spend 1/25 of its base price in XP and use up raw materials costing onehalf its base price.