Synfig now has the capability of creating switch layers. If you’ve never heard of switch layers before, it’s great for cut-out characters.
The gist is simple. What you can do is have a folder of mouths or hands that you can easily change out during while timing the animation.
To do my part and help out, I’ve made Misty free for anyone to use. She now has a Creative Commons License attached. Please let me know if you have any questions. She’s far from being complete but she has oodles of components to make all the switch layers you would ever want. Download her Enjoy! Please share your work:)
Misty Knickers by Stephen Egts is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Based on a work at https://dl.dropboxusercontent.com/u/18997734/Misty.zip.