Feldner, T. et al. Supramolecular metallogel that imparts self-healing properties to other gel networks. Chem. Mater. 28, 3210–3217 (2016). Alginate (pronounced al'jinate) is a flexible mould- and impression-making material; a gel is formed by Komatsu, H., Tsukiji, S., Ikeda, M. & Hamachi, I. Stiff, multistimuli-responsive supramolecular hydrogels as unique molds for 2D/3D microarchitectures of live cells. Chem. Asian J. 6, 2368–2375 (2011). water 5°C lower may double the times depending on air temperature, warmth of the subject, etc., but the

mixing the alginate powder with water. Alginate powder is manufactured from kelp - a variety of seaweed; Wang, Q. et al. High-water-content mouldable hydrogels by mixing clay and a dendritic molecular binder. Nature 463, 339–343 (2010).Cornwell, D. J. & Smith, D. K. Expanding the scope of gels — combining polymers with low-molecular-weight gelators to yield modified self-assembling smart materials with high-tech applications. Mater. Horiz. 2, 279–293 (2015). Spread-application: For larger body areas, scoop up the alginate in your hands and spread the paste evenly on to the subject - Li, X. et al. Photoinduced reversible phase transition in a dipeptide supramolecular assembly. Angew. Chem. Int. Ed. 57, 1903–1907 (2017). Slavik, P., Kurka, D. W. & Smith, D. K. Palladium-scavenging self-assembled hybrid hydrogels — reusable highly-active green catalysts for Suzuki–Miyaura cross-coupling reactions. Chem. Sci. 9, 8673–8681 (2019). Wei, Q. et al. Printable hybrid hydrogel by dual enzymatic polymerization with superactivity. Chem. Sci. 7, 2748–2752 (2016).

i) It is quite a floppy material once set and large, unsupported areas tend to sag and sometimes tear*; this But I was pleasantly surprised – responses were split pretty evenly between ‘I’m so jealous, I’d love to do that!’ and ‘I’d never have the courage, but you should totally do it’. It is necessary to have slight taper on side walls of your plug so that the mould can be removed easily. Typically a large mould would need to be a rigid wood frame covered in hardboard, plywood or MDF, clay or plaster can be used and reinforced with wire netting and Hessian (Pic 1), as toolmakers we tend to manufacture from wood, before applying the primer, fill in any grain, holes, dints and joints as any defects will show on your finished mould. Hammer down any nails using a punch and counter sink, any screws or nails cover using polyester body filler, the surface must be smooth and free from blemishes. Seal the wood with a hard varnish such especially if using MDF, a good sand and sealer or shellac varnish can be used. Then sand down with 60 grit sand paper. It also helps in maintaining tight twists that lead to well-kept dreads. This gel is sweet smelling and holds the hair perfectly for long time. Some brands will also have various sizings for children, such as Years 6-8, Years 9-11, Teenage and so on.Hide them, don’t let anyone touch them, don’t tell anyone you touch them yourself, wash them until all traces of natural scent has gone, all that crap.