I don't bother about getting all the meat off, any scraps from plates go in too (I usually make it straight after roast dinner).
The other way I do it is to cook chicken wings in the slow cooker, with the other stock ingredients added. Then get the wings out, try and keep them whole, put them in an oven tray with some salt and chopped herbs, or marinade, whatever, approx 20 mins on highish heat in the oven and you've got delicious wings to nibble and a pot full of stock.