1 A do-it-yourself approach for basic basement steps starts around $250-$350 for materials, and takes about 3-4 hours. 2  That's with standard lumber, such as pine; costs can go much higher with more expensive wood, such as oak.
Pour enough melted agar into each sterile plastic petri dish to cover the bottom - about 1/8 to 1/4 deep. Replace the lid immediately. Place agar plates on a counter top to cool and set. Agar medium will set like stiff gelatin at room temperature. The agar medium is now ready for storage or use.
Place it on a paper towel for a moment to let it soak up the water. Apply some cold water with the dish washing liquid on the model. Put the decal on the model and slide it to its position. Use the rag and the cotton at first to get the water out and get rid of air voids. Use a wooden spatula to get it in the corners.lace it on a paper towel for a moment to let it soak up the water. Apply some cold water with the dish washing liquid on the model. Put the decal on the model and slide it to its position. Use the rag and the cotton at first to get the water out and get rid of air voids. Use a wooden spatula to get it in the corners.