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im sure it can be done without a lathe, though i haven't tried it. i suppose with a sharp knife you could carve one (i might try that at some point). maybe a dremmel with sanding drums or something...

id say go for it, if you wanted to get one made i believe if you look in the classifieds here there are people who do custom work. if you wanted to do it yourself it is very possible, i would be...