Rinsed Thames Sand and Treacle (Tempting Failure, Braithwaite Hall, Croydon), 2018, tablecloth, sheep intestinal casings, folding steel rule, Tate & Lyle treacle, 175 kg washed Thames sand, found chair, enamel bowl, 12 hessian bags, music stand and 5″ kitchen knife. Duration: 3 hours. Photo: Terence Birch