Moving Widgets From One Theme to Another

Hi

I have two really great themes I use all the time. Theme 1 has several widgets that I absolutely use all the time. These widgets are part of the theme when I bought it. The second theme is great and I am using it for Local business projects, but it lacks several widgets I use in the first theme.

How do I take the widgets in the first theme and migrate them into the second theme?

Thx