Does anyone remember "Pyramint" from the late 1980s? Same idea as Cadbury's crème egg but obviously pyramid-shaped and with mint inside.
There was also Matchmakers, not seem them for 20-odd years, but I saw them the other day in Sainsbury's in their Christmas/seasonal aisle.
Then you have Cadbury's Whisper Gold. They were exclusive to 1996, disappeared, then came back a few years ago, again for a year only I think. Not sure if they're around now.

Citrus Sharp polos /thread
rare to find but I have seen them this year.Icecream Chewits. Probably only sold in some corner shop far, far away.

)Ignoring defunct sweets/chocolate I can think of very few things I want but can't get any more. I miss the sausage rolls from a bakery in my old home town that closed down, as they were incredible (really nice meat, not greasy, pastry that was kinda like puff pastry but with more body to it.... om nom nom...)
The sweets I miss the most are Frosties, they were kinda like fruit pastilles but bigger with a much harder centre
Flying sauces ?
I preferred saucers. Which can be had just about anywhere!

Spicy Nik Naks. Or at least I haven't seem them lately. Same with Flamin' Hot Monster Munch.

Then you have Cadbury's Whisper Gold. They were exclusive to 1996, disappeared, then came back a few years ago, again for a year only I think. Not sure if they're around now.

Spicy Nik Naks. Or at least I haven't seem them lately. Same with Flamin' Hot Monster Munch.