For entertaining, Seletti has a robust offering of products in their World Map series. I love the placemats best. It is sold in packs of 50 with a selection of city maps from London, New York, Tokyo and Paris.
Seletii also has ceramic world map dinnerware for sale. The placemats remind me of these lovely wrapping paper sold in Magma which is probably the next best thing to wrap presents in after plain brown paper. I was in New York recently and the conversation at dinner turn towards maps. Liam mentioned a map on race and ethnicity in New York City he’d seen.
This led me to Frank Jacobs’ Strange Maps. I like the Gridding of London and the Nightclub Map of Harlem produced at the end of the Prohibition charting funtimes. Frank Jacobs has since been published and his book Strange Maps can be bought here