Paint Inside in Adobe Illustrator CS5

Use Draw Inside with the new Bristle Brush to fill any shape with beautiful brushstrokes. This brush creates painterly strokes by mimicking the appearance of actual bristles from an artist's brush, but the strokes are still vectors so they're fully editable and scalable. To find the Bristle Brushes, open the Brushes panel (Window>Brushes), click on the flyout menu, and choose Open Brush Library>Bristle Brush>Bristle Brush Library. Click on a brush in the Bristle Brush Library to add it to the Brushes panel, and then double-click on it in the Brushes panel to open the Bristle Brush Options dialog.