A One Night in a Onesie walk takes place in Louth on June 7 for St Barnabas Lincolnshire Hospice. Register at www.stbarnabashospice.co.uk. There is a big walk in Lincoln that night too.
Walks are also taking place on the same night in Grantham and Boston.
The Lincoln event will be a world record breaking bid for the largest gathering of people wearing onesies.