A Tubular Design
The HB pg. 211 states it is a creative design having a dominance of cylindrical components throughout.
A. Design may consist of more than one unit
B. Tube/s may be of man made or plant material.
C. Plant material and other (optional) components, imaginatively used, complete the design.
A Transparency Design
The HB pg. 211 states it is a creative design including see-through element/s that permits some components to be viewed through others. The transparent material must be seen through easily and may be plant material or man made.
A Transparent design
A Tubular design