• POV-Ray 2
• GIMP

Designing the bowling pins was the most interesting aspect of this scene, the easiest method would be to generate a surface of revolution shape but that feature was only added in later versions of POV-Ray. Instead my solution was to split each pin into 4 quarters (made up of bicubic patches) and use a Bézier circle approximation to create the curves, the resulting shape isn't perfectly circular but despite that it manages to look the part.