Module 12-Chapter 12-stage 1-geometric shapes

 sample 1: a simple cube

sample 2: rectangular base

sample 3: "trapezoïd" base

sample 4: here the base is a rectangle, but the sides vary in height

 sample 5: the base is a triangle

sample 6: the base is a square, but the sides are triangular. Although it doesn't look like it, I think that this sample has got potential

sample 7: the base has a leaf  shape

Of course, all these samples can be made with sides of different heights, depending the final purpose of the finished item