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LEADER SINKANT, £4
A pot of Ledasink costs roughly £2, but if you buy raw Fuller’s Earth, a bottle of glycerin and some washing-up liquid you will have enough ingredients to make a lifetime’s worth of leader sinkant. Fuller’s Earth (100g) can be found online for £2, while glycerin is available from a chemist for around the same money. Experiment with measures, but for starters, try two teaspoons each of washing-up liquid and glycerine to one teaspoon of Fuller’s Earth. Put it in an old, plastic film canister or similar. Add glycerine when it dries out.
Home-made sinkant. Experiment to achieve the right consistency.