I just finished up doing the Modeling Paste Play Workshop (with stencils) from 
A Colorful Journey (Carolyn Dube) 
It was a lot of fun!  Learned things that I hadn't known before in it.  
Here are the Lessons, and what I did:
Lesson 1
Using modeling paste with spray inks in it to color it.
Lesson 2
Making patterned pages, using oil pastels and paint (with baby wipes)
Lesson 3
Making dimensional decals by using Flexible Modeling Paste and Stencils on a craft mat, letting it dry really well..then carefully peeling them off the mat.
Bonus Lesson
Using all the techniques used in the three lessons.
Definitely a workshop you might want to take.  Very fun!  Carolyn Dube is such a joy to learn from.
She makes it fun..and she's very helpful and informative.   Love her 'Oops'