I can't make it to DevDays. My locations (DC/NYC) sold out fast and my company has cut back on conference funding anyway. I still want some of the items mentioned here. Some customized for my user profile, some just generic logo and badge gear.
Please open a marketplace, storefront, what-have-you to sell some of these items once Dev Days are over. I think what you pull in should at least cover the costs and you get the benefit of folks walking into the office with their SO branded travel mug, etc.