The shape of this narrow, felt-tip marker gives you the best of both worlds: The fine point helps with precision work, and the wider edge allows you to go bolder. The carbon-black, glossy finish lasts a full day. $6.81 (amazon.com).
Essence Eyeliner Pen - I don't own this anymore, but this is what I used to practice eyeing liquid liner. If you are a beginner as well, I highly recommend this as a starter product. Especially since it's 2.49 CAD :)