Modeling

Making Flocked Magnetic Unit Stands

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The WAB Corner Blog has a nice post on making terrained magnetic bases to hold four figures based individually on washers.

Making Textured Paint For Foamcore Buildings and Ruins

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This video tutorial covers making textured paint for foamcore buildings and ruins.

Modeling Wheat Fields From Door Mats

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Iron Mitten has a photo tutorial on making wheat fields from door mats.

You can get the textured door mats in a variety of colors and textures, so this technique should be usable for a lot of different types of fields.