I've made Christmas trees before:
Traced Christmas Tree Example

For more fun:
Add a running timer component to the window. Then, put a custom property on the canvas called value and bind it to the value property of the timer to drive animations in the canvas.
Example: (Using the Santa repaint event code above)
Modify the part of the code where the eyes and pupils are drawn, so they change with the timer value:
# left and right eyes
graphics.fillOval(59, 121, 24, 24)
if event.source.value % 2:
graphics.fillOval(113, 121, 24, 24)
else:
graphics.drawLine(113, 132, 133, 132)
# left and right pupils
graphics.color = system.gui.color('white')
graphics.fillOval(68, 126, 11, 11)
if event.source.value % 2:
graphics.fillOval(117, 126, 11, 11)
Result:
