Comic strips:
Off and on since college, I have been writing and drawing a comic strip called OTIS THE ELEVATOR (which has no connect to the Otis Elevator company). This strip tells the story of a young man and his pet elevator--or really, it tells the story of an elevator and his pet young man. Here are some OTIS THE ELEVATOR sample comic strips in a PDF. I have other comic strips I draw from time-to-time, but none are as well-developed as OTIS.
Comics (long form):
I've been writing my own comics off and on for years.
Another character who has been with me for many years is a guy called CAPTAIN CAFFEINE(tm). Think of him as a spikey-haired Popeye only he's a super-hero who uses caffeinated beverages instead of spinach to gain his super-powers. Check out a Captain Caffeine sample comic page PDF draw by Ryan Dunlavey of Evil Twin Comics.
I also created a boy super spy called ACTION IRA. Think of him as Inspector Gadget yanked through a Looney Tunes filter. Action Ira protects the Earth's cheese supply against evil alien forces who would use it as a boundless energy source to conquer the universe! Read an Action Ira sample comic page PDF draw by me.