A "green" travel mug, announced in advance, would be nice and would make a great "green" statement.
By travel mug, I assume we mean with a lid and nonbreakable. (The nonbreakable part is as much for Talis as for C4L... way back in another job I once inherited boxes and boxes of ceramic mugs, which were fragile as well as expensive to ship. Boo.) Some SWAG companies are even selling SWAG made from recycled materials. I'm a big believer in greening the SWAG... and though I love the teeshirts, mine is only suitable for me as a nighty. Karen G. Schneider