Not Much More Than A Penny

Riddle: I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go, what am I? Do you know?

Answer: An inkpen.

Source: https://www.riddles.com/724

I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go, what am I? Do you know? — Not much more than a penny by Anonymous v1.

Riddle: I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go, what am I? Do you know? Answer: An inkpen. — by Anonymous v2.