I bought some more candy canes from Hot Dollar shop again this year.  They are translucent red with a white strip.

This year I want them on the nature strip so they need to be self supporting and self contained.

The canes fit perfectly into 25mm Electrical Conduit  Couplers.

25mm coupler
25mm coupler

For Tee junctions, I have been using irrigation barbed Tees.

25mm Irrigation Tee
25mm Irrigation Tee

20mm conduit fits nicely inside the irrigation fittings.
Update – it is important to ensure you have drain holes! at the end of the 2013 season, I discover the fram was full of water.