Good old gobstoppers! Each layer reveals a new colour and flavour and they do last a long while! These are 20mm in diameter.
Price: £2.27 for 250g
Ingredients: dextrose, modified starch, acid: malic acid, flavourings, maltodextrin, magnesium stearate, colours: E104, E120, E129, E133, E140, E141, E153, E160a, E160e, E171, Glazing agent: carnauba wax.
Manufacturer note: E104, E129 may have an adverse effect on activity and attention in children.