Rodents. To repel mice and deter them from creating nests near the base of trees, plant aromatic annual herbs, such as mint, lavender and catnip. For perennial plants that repel mice, consider amaryllis (Amaryllis), lavender (Lavandula) or daffodils (Narcissus).his attractive plant will keep cuddly kittens away from your garden. Scaredy cat plant (Coleus canina) grows to about 1 to 2 feet tall as an annual bedding plant. It has deep green foliage and delicate blue blooms. The smell of the scaredy cat plant keeps dogs and cats away from the area.
Glass is formed by heating sand to its melting point. Objects are then either cast or blown to their desired shape and allowed to cool slowly. Glass is made from a mixture of sand and other materials. Just regular sand can be made into glass, but it must be heated to about 3,000 degrees Fahrenheit.
Obsidian, igneous rock occurring as a natural glass formed by the rapid cooling of viscous lava from volcanoes. Obsidian is extremely rich in silica (about 65 to 80 percent), is low in water, and has a chemical composition similar to rhyolite. Obsidian has a glassy lustre and is slightly harder than window glass.