I need some fun activities I can have for 1st-6th graders based on a Transformers theme...any ideas?

I am a junior leader at a summer day camp I go to which means I need to help leaders with their groups from 1st-6th grade. But every Friday we have to plan activities for them based on the theme. This week Transformers is the theme and we need to come up with some activities by this Wednesday. We have only fives minutes for every group with the activity since they rotate to different activities and there is 20-25 a group so it needs to be fast. Please help!I need some fun activities I can have for 1st-6th graders based on a Transformers theme...any ideas?Have them draw what they would look like if they were a transformer.