It's impossible for me to show my phone without someone asking "What is that calendar widget?" It's called "Pure Calendar widget (agenda)," and it just got updated so that it works as a lock screen widget with Android 4.2 Jelly Bean.
If you're unfamiliar with Pure Calendar, it's a highly customizable widget. Anything being pulled into your Google Calendar can be displayed here, and there are numerous skins and colors available. Plus, it'll scroll. It's a must-have on my main home screen, and now it's sitting on my lock screen.
Get your download on at the link above.