There is the most amazing array of textile artists at Crafted By Hand this July. There are those that weave (and will teach you to too) those that sew by hand or machine, those that print on to fabric or knit. There's silk, felt and velvet - lampshades, tea towels, scarves, sculptures - it's an incredible selection. Here's a few just to give you some ideas...
And you can learn a new skill too, how about giant knitting with Mad About Wool? Or weaving with Agnis Smallwood, by the end of the day you can have some skills and knowledge under your belt to help you create your own masterpeice in time.