Use the trotters to make game or pork pies - they will provide that lovely jelly that surrounds the meat.
There's
a recipe for game pie on the site which is delicious - I think I'll try a pork pie and let you know how that goes too.
The shanks I'll cure and smoke for lentil and ham soup - they add great depth to the flavour and the meat's great too.
The dogs usually get the liver, although the last couple of times we haven't had the offal back from the abattoir...