K.P.
My son loves his blocks, he carries them around everywhere, and plays with them often.
He also loves anything with sound, or lights, those types of things go over very well with one year olds.
Find out if he likes any certain shows on tv, like my son just loves Sesame Street with Elmo. He plays with his Elmo chatters doll so much and the See and Play toys are great.
Have fun!