Tools used by Hmong shamans:
Top row (left to right): Shaman's altar, Bamboo and strings (hung vertically in the home of Hmong shamans and serves as a bridge from this world to the spirit world), finger bells.
Bottom row (left to right): Gong, ox horns, sword.
Here's a documentary about Hmong Shamans in America:
http://www.youtube.com/watch?v=UWtqpXm-g2U
http://www.youtube.com/watch?v=fciBMs7aJG4
http://www.youtube.com/watch?v=aBbgBbc7toI
Miao shamans of Hunan, China:
http://www.youtube.com/watch?v=B6ELA0Y9U9A