My idea is to redesign the Bodum Bistro Nouveau coffee cup on Cosmics Coffee website at:

http://www.cosmicscoffee.com/

The cup should be made of plastic as well as the removable handle and lid (you would have to make a solo-like lid for this), but plastic of the kind that you can put into a recycling bin. The plastic most likely needs to be mostly clear plastic. All parts - cup, hand and lid - need to have recycling symbols and numbers on them. The cup should be narrower at the bottom though - to fit into car cup holders - and the handle needs to remain high to fit into car cup holders. The cup could be stackable since the handles are snap-on handles. The cup would be recycled two ways - by people using them for travel mugs and by people simply throwing them into their recycling bins as plastic.