Here are two brushes for you to adorn your Christmas Tree / Season Fir: Xara - Fairy Lights.xar.

Approach:
  • Draw your line.
  • Clone.
  • Apply 4px Line Width and Flex Brush.
  • Apply 100px Line Width and Fairy Lights.
  • Break at Point for tight bends and put behinds.
  • Reverse Paths to flip lights.

Works all the way back to Xara Xtreme 5 (XX5).

Christmas Cracker Gift: XX5 has the means to create and Edit Scatter brushes.
It was free and might still be downloadable but do pick a legal source.
Xara Xtreme for Linux is still accessible.

Acorn