This block has a body that is only visible when in Source mode because is is a javascript.

<script type="text/javascript" src="http://www.calendarwiz.com/calendars/ucfeeder.php?crd=rvnac&theme=RVSingle2"></script>

This downloads a feed from CalendarWiz called RVSingle2

This is how the block looks in the Sidebar Left.

This is the custom block for Coming Events.