Native to Japan, how about getting your hands on a matsutake mushroom in the form of a headphone jack plug?
Dimensions: Length, Width & Height - 8.0 cm x 3.0 cm x 2.5 cm (3.1 in x 1.2 in x 1.0 in)
Made from polyvinyl chloride (PVC)
Note the design of this particular item is one-sided.
*As this item is made-to-order, please allow anywhere from a few days to approximately 1 week before it is shipped.