Is there a way to show custom fields in a widget?

I have different widgets for different types of post, but would like to be able to place the data from custom fields into the widget.

For example, I have an Accommodation post area, and this only shows accommodation posts, with an accommodation specific sidebar. Would it be possible to show the custom fields data for the particular post into a widget, to show up beside it?

Here is an example:

On the left, you see the post-it notes, wwithhe titles of the custom fields there. That is where I'd like to show the actual data.