When you talk to the animal that gave you the letter, he/she will be mad at you.
you get a letter from mom. Inside of it, there are pink carnations
You can't
If you open a gift or letter on Animal Crossing Wild World the person you were supposed to deliver it for will be very angry.
you can't
It is impossible to send a letter to any of the shops/buildings in the town and/or city in Animal Crossing City Folk. Letters can only be sent to other town folk.
no you cant 9 (sadley)
yes
Go to Tom Nook's Store, they come in a pack of 4.
No, unless your actual mother has a character in the game.
You cant because she is not in your town.
No, you cannot. You are able to in the original Animal Crossing, but not in Animal Crossing: Wild World. You can get coconuts if one of the neighbors sends a letter explaining they found a strange fruit or you may be lucky and find one on the beach. However, you cannot go to coconut island in Wild World.
You cannot send a letter to the mayor on Animal Crossing City Folk. You can only send letters to neighbors and friends. The mayor is one of those 'non-neighbors' that are in your town, but you can't talk to them or send letters to them like a real neighbor.