I like to get kids playing with words. Since most workshops are of a shorter duration, this activity works well: (I modified what I have done to make it less time consuming)
1. Create a list of words in 4 columns--nouns, adjectives, active verbs and -ing verbs, and distribute to students
2. Have students cut a piece of paper into four squares (or you can distribute 4 squares to each child)
3. On one square students write 4 nouns from your list, one noun on each side of the square
4. Do the same with the adjectives, active verbs, and -ing verbs
5. Students will write what I call a phrase poem by choosing an adjective and a noun for the first line (ie-wrinkled sunshine)
6. Second line uses an -ing verb and a student created modifying phrase (ie-dancing through green leaves )
7. The last line uses one active verb from the verb card and another student created modifying phrase (ie-kisses September apples )
I have used this exercise with second through sixth grades with much success. Obviously you need to demonstrate, but this is the idea.
I hope you can understand the directions. If not, ask for clarification.