I just bought a toy story shirt and a buzz lightyear toy to go with it for a 3 yo bday party we are going to tonight. My 3yo son loves disneys cars, hotwheels, color changing cars, Thomas trains, his train table, any construction vehicles, play tools, any sports things for outside, things like that. He shows no signs of stopping in this life time :) He also likes zhu zhu pets, books, play food set, puzzles, age appropriate games, his bike, oh and he loves his bubble lawn mower (been playing with it nonstop for 1.5 yrs!). There are also htings like a ball pit, small pool, trampoline, depending on budget and how much room you have. Stuffed animals are the worst only the special few get played with and the rest get ignored.