Instead of adding the spices directly to the bottles here's my suggestion; take 2 cloves, a stick of cinnamon, and a few allspice "berries" (I'd probably add a bit of nutmeg too, but that's just me) and put them into a 12oz bottle filled 3/4 of the way with vodka. Cap then leave in a dark place for 1-2 weeks. When you're bottling, add a tsp per bottle of the infused vodka per bottle (about, it depends on how you like it, I suggest getting some commercial hard cider and experiment adding amounts of the infusion into it untill you reach the desired amount of spicyness) then bottle with priming sugar like normal. Good luck, and don't overdo it with the cloves, thoes things are way more powerful than you think.
Primary:Russian River Redemption clone, Kelly's Melomel, Graham's English Cider 22-23
Aging:Public House Dry Stout, Procrastination Porter, Mr. Brown Ale, Westvleteren 12 Clone, Mead, Duvel Clone, Graham's English Cider 6-21, Belgian Draak Strong Ale, Fig Melomel, Acerglyn, Restorative Tonic Metheglyn