Heyaaa! I recently bought a jiuta shamisen and it did not came with a koma (there is a shinobi koma for sone reason, though; however, I don’t really want a muted sound 
). Does anyone have a template that I could print out or is it something that I should ‘freestyle’? Thanks in advance 
Hello Momoka san.
May I ask where did you buy your Shamisen?
And maybe post some pictures of it?
Thank you.
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I bought mine off facebook and I already sort of made a koma lol, just not aware of its quality (also made a doukake and neo for it )
Thank you.
That’s a very creative Doukake. Kudos!
As for the Koma, if you are looking for the specific Jiuta sound, you are better off buying a Koma, as Jiuta koma are weighted.
But the one you made looks good enough for a start.
As for 3D printing a Koma, that is something I don’t recommend.
None of the materials on both types of printers are suitable for even a moderately close-to-shamisen sound. Wood is better, and Bamboo is much much better.
So if you would be keen on remaking your Koma, here’s a cheap DIY solution:
Get 4 or 6 bamboo hashi/chopsticks, sand the sides flat so they have sharp corners, then glue them together to make a thicker bamboo block.
From there, carve your koma in the same way you did your currnt one.
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Thank you so much for the feedback! My aunt might go to Japan next year and I would definitely ask her to buy me strings, a replacement bachigawa and a koma haha. What do you think about a shari jiuta koma? The buffalo ones at Wagakki Ichiba are way too expensive 
I just sent you a DM.