Charles Manson's Hair and Ashes Used In New Exotic Art

Charles Manson's hair and cremated remains are being used in a new exotic piece of art ... and it looks eerily similar to the famous mass murderer.

Ryan Almighty tells TMZ ... he and fellow artist Terry Barr -- who specializes in sculpting shrunken heads -- recently joined forces to create Manson art.

Ryan owns some of Manson's cremated remains and pieces of his hair ... both of which were gifted to him by a close friend of Manson's.

Once Terry sculpted the lifelike Manson head, Ryan added the remains in the eyes and attached grey hairs to the head.

Bad news for Manson followers ... the shrunken head isn't for sale, but Ryan says you can check it out at his private museum in Warren, PA.

Ryan has a history of using Manson's remains in his art ... even using ashes in a "Helter Skelter" tattoo for one Manson fanatic.