YoBistro (a.k.a "Restaurant Week") was a one week theme released in February 2013. This mini-theme lets you buy your own restaurant, with many different themed rooms, such as desert, ninja and even 50s diner. There were also a lot of costumes released in this theme, with lots of fun clothing items popular with the players.
The theme had very good reviews to it with lots of people loving the unique items and fun costumes, such as a burger costume and salad hat.
The furniture for this theme is good too, because there are so many sub-themes.