The following activities are ones I have created or adapted for use in various courses. If you use them, I'd love to hear how it goes or what modifications you made for your classroom.
Cognitive Distortions Activity (for Introductory Psychology Discussion Section on Clinical Psychology)
Mock Institutional Review Board (for Research Methods)
Child Observations (for Introductory Psychology Discussion Section on Developmental Psychology)
Active Learning Project (ALP) on Motor Development in Blind Children (for Developmental Psychology)