You can use 2" Thangles, or any other brand of paper triangles or any method you prefer to create half square triangles that finish at 1 1/2”

fabrics needed

AND your favorite fabric to make this 16” x 40” runner

for thangles method 2 1/2” x 20” Three strips each of 3 colors (or more) colors

other methods may need a bit more probably 1/8 yard of each color

binding and background - 5/8 yard