The famous MilkDrop plugin for WinAMP has a feature to display text messages with some special effects on the screen. A decade ago, this was only configurable by editing some ini file and then checking the results in WinAMP. Repeat until you're satisfied.
To make things easier, I wrote a simple simulator which gives you an idea of how the result will look like. So you can simply add various messages in a short time.
Here are some screenshots:
