In 1992 I introduced ‘Zappi’ (Eekhout, 1992) as the yet unknown, fully transparent, structural reliable material for safe structural design in architecture. I have worked in my chair of Product Development in the faculty of Architecture with my staff and students on this topic, which was initiated by the graduation project of Civil Engineering student Rik Grashoff, nowadays alderman in Delft. Since roughly that time I designed numerous experimental glass structures in my design & build company Octatube Space Structures BV. This paper displays the different ‘Zappi’ techniques that have been developed in the different design, development and research processes and particularly for the architectural ‘Blob’ designs of late. The listing contains a mixture of realistic short-term design & development projects I supervised in Octatube and the medium/long term research & developments undertaken in the department of Building Technology.