Lakshmi mantra: Om Shrim Mahalakshmiyei Swaha (ohm shreem maha-lak-shmee-yay swa-ha). For prosperity and for attracting wealth of all kinds - such as friends, family, health, etc.
Lakshmi (pronunciation: [ləkʂ.miː]; Sanskrit: लक्ष्मी lakṣmī) is the Hindu goddess of wealth, prosperity, and generosity; and the embodiment of beauty, grace and charm. Representations of Lakshmi (or Shri) are found also in Jain monuments. (From Wikipedia). http://en.wikipedia.org/wiki/Lakshmi