This is a great activity that has been a hit for several years now in my classes. It helps to bring some of the irregular preterite verbs to life and take on meaning to the students. The verbs highlighted here are "venir," "traer," and "decir."
There are 6 slides total. 3 instructional and 3 to actually do the activity. This will take about 30 minutes total in class and students will be laughing and speaking Spanish!