We wrap a few particularly special bits in each stocking - boys are 16 and 14 now so wrapped stocking presents are things like a new power bank, headphones, nice playing cards in a tin, reading light, small books. Dafter stuff just goes in unwrapped - jumping beans, smart putty, whoopee cushion etc. Everyone gets a chocolate santa, tangerine, nuts, red apple, chocolate coins and assorted toffees. Then each person gets a few edible bits to their taste, so fererro rocher star and truffles for ds1, sour jawbreakers and popping candy for ds2.
We have always done stockings for adults, even before the kids were born! My dad is 78 and it's lovely to see him getting excited about his stocking, he gets things like new banjo picks, sheepskin insoles, a new comb, Parma violets, a harmonica, kendal mint cake, peanut brittle. Bugger anyone who thinks adults having stockings is risible. Pffffffffffft.