If you're running a prop-heavy "Call of Cthulhu" game this Arkham trolley ticket makes a nice wallet filler, but it can also serve as a useful clue to someone's movements around the town. It looks best if it's printed out on a light-colored sheet of construction paper or card. If you have a color printer you might want to modify the ticket number to print out in blue or red ink for a more realistic appearance. Since it's sized for a 1" by 2" ticket you can print out a couple of copies at once on a sheet of paper and then trim each ticket out individually.
If you're really dedicated there are a couple of things you can do to make it even more realistic. Duplicating the perforations of a real roll ticket can be accomplished by running a pounce wheel along the short sides. Hit the corners with a hole punch and you'll have a good facsimile of the notches used to make ripping the tickets off the roll easier. If you have a any custom punches you can use them to simulate a ticket that's been used on a transfer.
Just click on the picture for the full-sized version.