kidsmealdeals.com has a widget that you can place on your site to show where parents can get a deal on kids meals.
The widget automatically detects your location (ip based location) and provides a list of the restaurants in your area where kids can eat for FREE!
As you can see in the code, the widget uses Iframe tech and is limited in the ability to modify.
You may be able to tweak the size of the widget to fit your sidebar better. But I am pretty sure that this will break the images used in the top and bottom of this widget.
Grab the Kids Eat Free widget here: