Originally intended as a way to stabilize sensitive instruments on ships during World War II, the Slinky is quite simply a helical spring with an unusually good sales pitch. But as millions of ...

Tesco’s Slinky the Caterpillar (£7.50 for 615g) had a similar issue with dryness and one third of people also felt it ‘lacked buttercream’. Asda’s Letty the Caterpillar Cake (£7.50 for ...