TurtleArt 0.8 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app is an intellectual property of TurtleArt. The application is included in Design & Photo Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
TurtleArt lets you make images with your computer. The Turtle follows a sequence of commands. You specify the sequence by snapping together puzzle like blocks. The blocks can tell the turtle to draw lines and arcs, draw in different colors, go to a specific place on the screen, etc.
You may want to check out more software for Mac, such as Cuadro or iPodEditor, which might be related to TurtleArt.