Does anyone know where i can find a ribbon for my Typewriter?

I was at the Cracker barrel the other day and i saw a old typewriter and i asked my mom about if we had one and she told me my grandparents got me one of the first ones as well as an electric and all we need is a ribbon for it which brings me too my question I'm not sure where to find one and I'd appreciate it if someone would point me in the right direction.
My reason for pulling out the typewriter is i want to type up a story like the masters and i want to give it a try and i want to see how many pieces of paper ill go through before i get my first paragraph typed up