One of the most interesting masks is Hyottoko, visible on the left upper corner in today's photo, representing a strange character with pursed lips and bulging, sometimes uneven eyes. Hyottoko (name derived from hi "fire" and otoko "man") is wearing a white scarf with blue dots and blows fire through a bamboo pipe, because it is the god of fire in some regions (especially in the Iwate Prefecture, an area famous for its iron industry). However, in other regions the same mask represents just the fool character in peasant comedies...
EXIF info:
Nikon D90
Lens: 18-70mm F/3.5-4.5G
Focal Length: 18mm
Aperture: F/5.6
Shutter Speed: 1/200s
ISO Sensitivity: ISO 320