This goes along with the outside security ideas, but I didn't see this specific idea anywhere else so here goes (phelps.mike did have a note about piggy feeders, but I wanted to expand on the feeder idea).
Can we have pig feeders that can be placed on our streets, will allow all the residents of a specific street to deposit food into them, and can only be removed by the player who purchased the feeder? We are having trouble keeping enough food out for our street's pigs. No matter how carefully we hide the food, we invariably have to check our street repeatedly and put out more grain every couple of hours. I bet we're not the only street that's got this situation either.