Using a Picture Tube.

  PSP 9

Click on the "Picture Tube" button on the toolbar

In the "Tool Options" palette
Choose the tube from the drop down list.
The size can be adjusted with the scale setting.
(usually by trial and error )

Apply the tube one at a time or continueously by dragging over the canvas.
The "Step" control is the amount of pixels between each tube when dragging.