The most dice stacked using chopsticks in one minute is 19, achieved by Stephen Kish (UK) in Hove, East Sussex, UK, on 13 March 2012.

This record was broken on the Guinness World Record Challengers site (Challengers’ tag: Oddish196): http://challengers.guinnessworldrecords.com/challenges/85-most-dice-stacked-into-a-tower-with-chopsticks-in-one-minute/attempts/1477