Cornimer

Cornimer is a tortoise who appears in the. He comes out only during the Acorn Festival in, and gives players mushroom furniture, walls, and floors in exchange for acorns, which are obtained by looking under oak trees during the festival. However, if players give him a rotten acorn, he will say that all the other acorns the player gave him that time do not count. Much like Tortimer telling the player's fortune by using fireworks he can tell the player's fortune by using acorns, as shown below. He gives the player pieces of the mushroom series, each time wanting more acorns.

Speculation
Cornimer may be Tortimer in a disguise. During the Acorn Festival, Tortimer is not behind the desk in the Town Hall. The first time Cornimer laughs in his dialogue toward, the player he says "Hef Horf Horf... Wait no! Good luck lil' Oakie!" The only difference between Tortimer and Cornimer is their heads. They both have the shell, cane, bow tie, and glasses. Their names even sound similar. Tortimer loves to prank the villagers and the player (on April 1st of, he gives the player an unusable video game or a leaf). Also, in on the Toy Hammer Tours, the machine whacked by the player is Cornimer's head on what appears to be a lawnmower.

Super Smash Bros. Brawl
In Super Smash Bros. Brawl, Cornimer is on an obtainable sticker.