Rudraksha -  Buddha wore  these  Beads ,so did  Gandhi , Dalai  Lama  &  Indian  Yogis.

Yantra literally means "instrument". A Yantra is a geometric design acting as a highly efficient tool for contemplation, concentration and meditation. Yantras carry spiritual significance, and point the user to higher levels of consciousness.
The Yantra provides a focal point that is a window into the absolute. When the mind is concentrated on a single, simple object (in this case a Yantra), the mental chatter ceases. Eventually, the object is dropped when the mind can remain empty and silent without help. In the most advanced phases, it is possible to attain union with God by the geometric visualization of a Yantra. The Yantra is like a microcosmic picture of the macrocosm. It is a focusing point and an outer and inner doorway. The Yantras are often focused on a specific deity and so by tuning into the different Yantras you can tap into certain deities or creative force centers in the universe.
 

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Sampurna Shree Yantra Item Code: GPYSM - 101 View Details	Sampurna Navgrah Yantra Item Code: GPYSM - 102 View Details	Sampurana Vaastu Dosh Nivaran Yantra Item Code: GPYSM - 103 View Details
for Wealth, Peace and Prosperity Size - 8 x 8 inches Price : U.S.$ 49.95	for getting rid of all  Doshas of Horoscope Size - 8 x 8 inches Price : U.S.$ 49.95	for getting rid of all  Vastu  Doshas of a House Size - 8 x 8 inches Price : U.S.$ 49.95
Sampurna Kuber Yantra Item Code: GPYSM - 104 View Details	Sampurana Vidyadayak Yantra Item Code: GPYSM - 105 View Details	Sampurna Badhamukti Yantra Item Code: GPYSM - 106 View Details
for wealth, money and success in business Size - 8 x 8 inches Price : U.S.$ 49.95	for Education and success in Exams Size - 12 x 12 inches Price : U.S.$ 95.95	for Overcoming hurdles created by enemies Size - 12 x 12 inches Price : U.S.$ 95.95
Sampurna Kaalsarp Yantra Item Code: GPYSM - 107 View Details	Sampurna Vyapar Vriddhi Yantra Item Code: GPYSM - 108 View Details	Sampurna Rog Nashak Yantra Item Code: GPYSM - 109 View Details
for Removing malefic effects in Horoscope Size - 12 x 12 inches Price : U.S.$ 95.95	for Overall success in Business Size - 12 x 12 inches Price : U.S.$ 95.95	for A better health by removing diseases Size - 12 x 12 inches Price : U.S.$ 95.95
Sampurna Shatru Nashak Yantra Item Code: GPYSM - 110 View Details	Sampurna Shree Yantra Item Code: GPYSM - 111 View Details	Sampurna Navgrah Yantra Item Code: GPYSM - 112 View Details
for Removing hurdles created by Enemies Size - 12 x 12 inches Price : U.S.$ 95.95	for Wealth, Peace and Prosperity Size - 12 x 12 inches Price : U.S.$ 95.95	for getting rid of all  Doshas of Horoscope Size - 12 x 12 inches Price : U.S.$ 95.95
Sampurna Vaastu Dosh Nivaran Yantra Item Code: GPYSM - 113 View Details
for getting rid of all  Vastu  Doshas of a House Size - 12 x 12 inches Price : U.S.$ 95.95