Out of My Comfort Zone

My friend Amanda and I have challenged ourselves to do things out of our comfort zone.
So far we have come up with:
Zip lining
Kayaking
Building a House for Habitat for Humanity. Hammers and I don't mix, so we will see how that goes, maybe if they need someone to sew floral pillows or need someone to find sweet thrift store deals for the interior....

Any other suggestions?

PS. I am taking dancing lessons with one of my favorite couples and a poor unfortunate soul who I promised only to step on his feet seven times each lesson, pray for him.