so apart from that your more than welcome to use any idea i come up with.
Of course I will give you credits xD I actuall only plan to make a list of ideas and then provide possible recipes along the way so my ideas become a little more plastic.
As for the pork pie I'd expand the idea to Meat pies in general - so we have Pork Pie, something similar to Steak&Kidney, Steak&Mushroom and Chicken&Veggie. If you are fine that I mention you when I list the meat pie idea I'm fine to do that ^^.
With my upcoming post I actually want to put my previous list of ideas into clean categories and then just include possible recipes. :3
By the way: I use Mo'Creatures as well but wth is "Flan's Mod"?
I'm 99% certain that at the very least you can put custom drops in the mobs without modifying base classes!
I'm not sure about the others, but I'm positive even for them too!
Other than that, the mod has great content even without these few features!(Although I was very excited about the golden fish XD)
To get drops from mobs and the other fishes you have to manually install the mod by inserting the files into the .minecraft.jar - otherwise the mod will work but things like mob-drops and new fishes or anything else based on modiefied base classes won't ^^