fine lil' lathe you've got there.
Now ya just need to cut some 1x1 stock, cut a "X" in each end grain, hammer in the mandrel spike, then line up the end guide on the end spike.
grab your gouge do a quick round off, sand to final grade before starting the tip of the nobby.
then take your knife and cut the dome with that, leave just enough material on the end that your nob doesn't fly off the lathe. cut off the nobby at this point.
then you just got a lil 1/8 bit thats ugly on the end of your nob that you can take over to a disc sander buzz off then start to hand sand. Note if you cut with the knife right, you shouldn't need to sand that part of the dome on the tip of the nob
just the little bit on the very end you'll have to sand.
My biggest advice for any lathe user is learn how to use your knife!, once you get used to it theres no need to sand and you can do almost anything, awesome tool, just be prepared to sand after using it for the first few months intill you've got it down pat
