the white cloths?

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From Wikipedia:

A khata, khada, khadag, or hada is a traditional ceremonial scarf used in Tibet and Mongolia. It symbolizes purity, goodwill, auspiciousness and compassion. It is usually made of silk. Tibetan khatas are usually white symbolizing the pure heart of the giver.

The khata is a highly versatile gift. It can be presented at any festive occasions to a host or at weddings, funerals, births, graduations, arrivals and departure of guests etc. The Tibetans commonly give a kind acknowledgment of “Tashi Delek” (meaning good luck) at the time of presenting.

http://en.wikipedia.org/wiki/Khata