Lego’s research revealed that its toys weren’t just appealing to curious children, but adults who wanted to relive their childhoods. A series of 18+ product innovations have since become bestsellers; including the 2,048-piece ‘Friends apartments’ (based on the sitcom), a 11,695-piece ‘World Map’, and the Mos Eisley Cantina from Star Wars. In fact adults now account for 25% of sales in the wider toy industry, according to the NPD group.