Believe me, I tried to do all that. I couldn't get the bunny ears to look right, because their texture has different dimensions than the cat ears. As a consolation, I made a new Tattle for the shopkeeper Boo that references the bunny ears.
The chalk outline was a similar situation. The localization team didn't just replace the texture for that, they outright removed it from the game. I can't exactly reskin a texture when the texture I want to replace isn't there :p
Like with the bunny ears, I added a bit of dialogue referencing the deceased Toad. Talk to the shady Bandit after beating the Shadow Queen to see it.
I tried finding a way to give TEC his red eye, but the eye doesn't seem to be a texture - its color is hard-coded into his model.
I tossed around the idea of replacing the wrestling mag, but decided against it, as the only difference is the Japanese text was replaced with vaguely cursive-looking text. Seems a bit silly restoring cosmetic Japanese text when all the other text has been translated.