Simple Text is a great little tool to generate text-style icons. You simply chose what fonts to use for each line, and adjust the text X/Y offsets, size, any rotation, scale, color, and so on. You can even change the background.
If you have more TrueType fonts, you can load them manually (just put them into the right folder) and use those in your app as well. It comes with 6 fonts.
If you need ALL your fonts to look uniform, this is a good app to try.