I would like to acknowledge the work of Moses Partsen Mpofu who, being the Research and Development Manager at Sakaramenta, I worked closely with on all projects there. He is an excellent colleague and worker and I want to thank him for all the help, knowledge and advice he has given me with regards to the engineering of the products we designed together. I must also promote his skills as a metalworker and craftsperson. It is a true pleasure to work with someone so skilled at their work and who makes a designer's job that much easier.