Photography by Arran Graphics, this is me just trying to be clever, but I think it works. We have a set of 6 Coasters, which make up two famous views in 3 coasters. The mugs are individually printed with one of the views.
It's quirky and fun and the photos lend themselves to this. 
Coasters only available in boxed sets of 6 (2 x 3) and mugs can be bough singly or in pairs (one of each design). I also offer 6 mugs (3 of each design) as an additional option.