Here's a fun icebreaker that I learned from my friend Elizabeth. It would be great to do with your colleagues or your students:
It's a candy bar test. You take 10 paper plates and number them 1-10. Then you use a fork to squish a different miniature candy bar on each plate. Give each person a piece of paper & a pen. After they # their papers 1-10, they either pass the plates around or walk beside each plate. Without knowing the candy bar options, they quietly try to guess which candy bar is on each plate. They can't taste the candy mush, but they can look and smell. Reveal the answers and see who gets them all correct. It's very fun!!