Red, orange, yellow, green, blue, pink, black and gold - you never know when children might want to redesign the rainbow. POSCA is a new range of water-based colour markers that makes you eager to start drawing, lettering, designing a billboard or customising a project book. The tips run from fine to extra broad and the colours include glittery and fluorescent varieties. The inks are fade and water-resistant and write on many different surfaces, including metal, plastic, glass, photographs and fabrics as well as paper. POSCA markers can be bought loose or in multi-packs. Prices range from Pounds 1.40 to pound;2.80 each, depending on nib size. www.uniball.co.uk

Tom Deveson and Laurence Alster