Take a moment now to bow your head and honor your dearly beloved favorite products (may they rest in peace), those triumphs of commercialism that made your life a little better but inexplicably were discontinued by their manufacturers.
This list is only for products so functional that they conceivably could be marketable forever. It is not for previous milestones like classic cars or aircraft that may still be collected or used but clearly have been superseded by better products.
Here's a start to the list:
Colours shirts by Julian Barnes
Faded color casual long sleeves, all seasons, 100% cotton Sri Lanka
Sandalwood Bath Gel by Crabtree & Evelyn
Intoxicating masculine mystery scent from antiquity
Winchester Model 94 30-30 carbine
Classic caliber and handling
Fruitberry Bubble Gum
Treasure from a little grocery in the front of a house