We didn't see many candy canes when I was a kid; more an American thing it was then. It is claimed that the idea goes back to 1670 and a choirmaster in Germany keeping his choirboys quiet. One has to be sceptical with these things. Getting a good children's talk out of a piece of candy shaped like a shepherd's crook and with white for purity and red for blood should not be too difficult for most.
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.