- Virtual currencies: As I mentioned earlier, it's used as a hypothetical currency in online communities.

- Project management: A simple marker can be a visual indicator or a flag to mark tasks, deadlines, or important events.

- Design and art: Markers are used for coloring, drawing, and creating artwork.

- Education: Teachers might use markers to grade assignments or mark important points on a whiteboard.

- Gaming: In-game markers can indicate locations, objectives, or player positions