Can I just say drinks with no sweeteners in general? I note the names above but would like to add Ribena, which not only tastes dreadful with sweetener but (the cordial) goes off much, much more quickly in the bottle. Obviously the sugar tax is the culprit and Ribena's audience probably wouldn't have stood the price hike. We don't drink vast quantities of sugary drinks, but the option of them would be good, on which subject, Belvoir (pronounced "beever") drinks have sweetener-free orange cordial (actually almost 50/50 lemon/orange), ginger, elderflower. There are a few other companies out there too (Bottle Green springs to mind). And surprise to me, but Sainsbury's has started doing an own-brand "traditional" fizzy lemonade without sweeteners.
Pear drops - they are still available occasionally at pick-n-mix outlets but they seem mostly to be the large type with granulated sugar on the outside rather than the smaller ones with icing sugar. There are often some in bags of Yorkshire Mixture. Failing that your best bet might be to visit somewhere like Blists Hill, St. Fagan's, Black Country Museum (I think) where they have recreated "traditional" sweet shops. The Black Country Museum has a chip shop frying in beef dripping too.
Icecream in rectangular cardboard boxes. Not the cheap stuff that used to be supplied like that, but the nice stuff I buy these days. In fact, old icecream flavours - plan ones like chocolate ripple. The people we buy icecream from (and have done since the mid 1970s) used to do a dozen different ripples, these days it's all what used to be termed "continental" flavours and the only ripple they do is raspberry, which was always, addmittedly, my second favourite after chocolate.
On the subject of which, chocolate icecream which is just chocolate. Not chocolate icecream with bits of chocolate or biscuit or dough or wafer in, just chocolate.
(I could go on)