Some craft or scrapbook supply stores carry these, and you just trace the lettering you want out of a lettering book. You can do the same with clipart. Then I type it into Word Perfect on the computer, and change the type's color to an appropriate shade for the event and then use the tab and space bars to create a particular shape from the words. Like my nephews trip to a pumpkin patch at Halloween. I always keep an eye out in the newspaper or magazines for large words.
Newspapers usually have bold words while magazines use different fonts.
If you're going to be writing directly on your paper map and mark your titles first that way you can arrange and crop your photos to fit around your title instead of trying to squeeze in the words later. To make your journaling and handwritten titles look cleaner and more professional, use a thin, clear plastic ruler placed directly on your page. No need to erase lines. I use the ruler that came with my day runner. I've been doing this for years with envelope addressing and the like.