I've just bought the 'Letter from Santa' and 'Make your own Christmas Advent Garland' sets from Tesco. The Santa kit is reduced to about 37p (from ?1.50ish), and the advent garland kit (like an advent calendar) to 99p (from ?3.99ish). I've taken out the sweets, and will replace them next year with dairy & gluten free treats. The Advent garland kit is a set to make your own shaped chocolates which you then put into bags to open each day of December. This way DS can have the Christmassy things next year without me paying over the odds for the sweets he can't eat.
And guess who'll have to eat the sweets she's just removed from the sets.......