The Jack O Lantern design is a Jack-o-Lantern for Halloween that you can carve with a picture or text. Light parts of the picture will not be carved, dark parts will be. The house in the background is from Kator Legaz, used under a creative commons license.
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This is a 400x300 design, with 800x600 available to subscribers.
The design is made using Blender, a free and open source 3D animation suite.