Blinis with smoked salmon, sour cream, chives, half quail’s egg, caviar
Mini Yorkshire puddings with rare roast beef dipped in gravy, horseradish sauce, beetroot
Melba toast with liver pâté, bacon pieces, crispy onion, thinly sliced raw onion and pickled beetroot
Vol-au-vents with crab/trout/salmon/mackerel mousse or pâté, topped with dill, lemon, cucumber
Vol-au-vents with chicken & ham salad, with garnish of whatever salad veg you’ve included in the salad
German grain bread/rye bread (cut into bite size pieces) with Brie/cambazola/Gorgonzola, topped with cranberry sauce
German grain bread/rye bread (cut into bite size pieces) with gravadlax & sauce & lemon
You could also do tiny quiches (or cut one big one into small pieces)
Tiny puff pastry tarts (Delia has a good recipe)
Devilled eggs
Cheese twists