is Siberian Reds' first in a series of DIY terrain building tutorials. This is a step-by-step guide to build Team Yankee walls that are so cheap that you won't need to ask Mexico to pay for them.The main materials are thick corrugated cardboard (on top) and thin cardboard (on bottom). Both of these pieces have been used for spray painting and have been thickened (which is good but not required) with multiple layers of spray paint.The thin cardboard will form the base. Cut the thin cardboard into 1-1.25" wide strips. The width should be determined by the thickness of the corrugated cardboard. If the corrugated cardboard is thin, use 1" strips for the bases. For thicker corrugated cardboard use 1.25" bases. In the example shown the corrugated cardboard is medium thickness and the base is cut to 1,125" width.The corrugated cardboard will form the wall and should be cut to 0.5" wide strips.Both base and wall should then be cut to matching lengths. 5" to 8" are recommended as the most suitable lengths. If the cuts are not clean, use sand paper on the corrugated cardboard as required, Don't worry, it doesn't need to be even or pretty, but roughly close.Center the wall strip perpendicular to the base strip and glue with wood glue or hot glue. Wait until glue sets before proceeding.The next step is to give the wall and the surrounding ground some texture. This is done by covering it with sand. Mix 50% wood glue and 50% water. Paint this mixture onto the entire wall and base but do not allow excess to soak deep into the cardboard. Then pour sand over the entire wall and base. Make sure no cardboard remains uncovered. Wait until completely dry and apply several coats of spray on matte clear coat. repeat clear coat until all the sand remains secure to the surface.Paint the wall grey and the base brown.Add some static grass to the base (preferably 2 or more colors) and some random flock to the wall. Then its time for a few more coats of matte dull coat and our wall is complete!