All toy boxes are the same except for appearance, and have a Fun rating of 7. In the base game, there is a toy box in buy mode, and some expansion packs and stuff packs have toy boxes.
There is also the Will Lloyd Wright Dollhouse, which can be used by one or more Sims. There is the Urchineer Train Set by Rip Co., which is a scaled-down kid's model of the adult train set. Makin' Magic adds a pink toy box that occasionally dispenses Fairy Dust, which is a magic ingredient for kids.
There is a toy box in buy mode which has a Fun rating of 2, and can only be used by children.