The comedian, who died in 2018, will be remembered in a new exhibition that brings together props, costumes and an interactive 'giggle map' Tickling sticks, a Dicky Mint puppet and a Yorick skull complete with protruding teeth will go on display in September as the Museum of Liverpool pays tribute to the city's beloved comedian Sir Ken Dodd. Dodd, who died aged 90 in 2018, is to be remembered in the exhibition Happin…