To the folks at Forest Hill (and to others gleaning the website for ideas),
I find it helpful to broaden my search. Even if you are looking for ideas for a specific workshop, you might find some good ideas or discussion questions by looking in the forums devoted to other workshops. If, in your search, you see that there are complete lesson sets on a particular Bible story, then definitely check those out.
In this particular case, go to "Lessons and Resources" > "Lessons: Samuel, Kings, Chronicles" > "David and Goliath". Once you are on the David and Goliath page, scroll down to the bottom (you will scroll further down from this forum on Bible Skills and Games). You will see that there are two complete lessons sets--one by Creative Carol and one by Amy Crane. They both have games workshops with either questions listed in the lessons or links to questions.
Hope that this helps!