Food models look so real. They would help Non-Japanese understand what the dishes are without knowing a single Japanese word or Japanese make up their mind on which restaurant they are eating at (well, it would often become more difficult to decide which one though).
食品サンプルを作るキットが販売されていたり、ワークショップをしているお店もあるそうです。
You can buy a fake food kit or take part in a workshop to create your own plastic food.