A metre of fallopian tube was another favourite, along with the chequere paint.
Most of them used to fall for it.
Then there was the Machine shop initiation (was only told about this one) upon completing your apprenticeship the unsuspecting bloke would be bundled into the bog and their scrotum treated to a covering of engineers blue - generally known as being "blue balled"
Ex machine shop bloke I know very well told me about this.
Think there would be disciplinary action taken nowadays !!!