“…As common upcycling materials, wood, furniture, metal, electronics, fabrics and (plastic) packaging as revealed in our study (Section 3.1.1) have been addressed in other existing studies, with wood and fabrics appearing most frequently [22,71,108,[114][115][116]. Online shops or networks such as eBay, Gumtree, Freecycle or Freegle as frequently used source of materials (Section 3.1.1) have been described as useful sites for buying and selling (or disposing and sourcing for free) used materials, typically in households [22,108,117,118] or fashion industries [39,119,120]. Skips and charity shops (Section 3.1.1) are well-known sources of used materials amongst individual makers [22,108] and in the fashion industry [121,122].…”