DockIP is a small application that displays your IP address in the application's Dock menu. It is not a true dockling, just a small application. Clicking on your IP address will then send it to the clipboard for later pasting into another application.
What's new in DockIP
A slightly updated version with the ability to load the IP address as an item in the menu bar.
Doesn't have all the functionality of ShadowIP (also freeware) but it's also 1/20 the size of ShadowIP. Just realize that the IP addresses don't show up on the dockling...they're in the dockling menu so you have to control-click to get them.