Nost of what we use has already been covered but I'd like to add - a marble run, like Discovery Toys has (even the adults that visit get into it!), a tape recorder that dd can use herself, tupperware & the kitchen sink for 'doing dishes', and wagons/ride on or in toys, etc. She loves carting things around in bags and backpacks, too. And any furniture that is toddler sized, although that's not really a toy I guess.