I seek ideas for training exercises (role plays, case studies, self-assessments, etc.) that would make a workshop on giving & receiving constructive feedback more interesting & effective. If you have suggestions you are willing to share with me, I would appreciate it.

Lanne... are you an instructional designer? Please help me understand the context for your requests so that I may better understand how to assist.

Try the exercise called Sensitive Issues Skill Practice at http://www.abctrainingsolution...nagementskills1.html. It's quick, fun but does introduce some of the rules about giving feedback.

Try free communication exercises. There is a large range of materials available.