Answer:
I cannot be other than what I am, until the man who made me dies. Power and glory will fall to me, only when he last closes his eyes.
I can be hairy and itchy all over. I hang on a stick. I can be the scariest thing you have ever seen. I stand in the middle of nowhere.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
rub me and a genie might appear
I smell like blue paint pours like green paint and I look like a red truck.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.