Karl reminded me tonight about a little bonus feature at this year's EclipseCon I hadn't previously heard about:
Bring Your Own Bag, Score Two Extra Drinks.
We are offering a Bring Your Own (Conference) Bag option this year. To save resources and have some fun, please bring a bag from your collection. There will be prizes for unique bags (oldest, from furthest away, etc.), and everyone who brings a bag will receive two extra drink tickets! 
This year at #EclipseCon, it's BYOB - bag, that is. Extra drink tix if you bring ur own bag from past shows. Best recycled ones get a prize. 
Is there anything better than free (as in beer)? BYOB and find out!