Two Sets of Categories in Two Different Widgets

Hello,

I’ve implemented two sets of categories. Let’s say one for place of origin and one for price. Each of these two categories contains many sub-categories. Like this :

- Place of origin
  - North America
     - Canada
     - USA
     - Mexico
  - Africa
     - Egypt
     - Algeria
     ...
- Price
  - Expensive
     - 1000$ - 2000$
     - 500$ - 1000$
  - Affordable
     ...

Now my question is : How can I get two separate widgets, one of which will contain “North America, Africa, etc.” (and sub-categories), and the other will contain “Expensive, Affordable, etc.” (and sub-categories) ? Or in other words, one widget containing all the children of “Place of origin” and the other widget containing all the children of “Price”.