Well my DS is in love with playdough at the moment, It's an oldy but definitely a goody.
He loves to cook with me as well. We make pizza once a week and he kneads and rolls out his pizza dough and puts his fave toppings on it.

Yesterday we went to the craft shop and brought some felt to cut out shapes and made finger puppets with it. Very easy. Also we have just printed cut out shapes to make a puppet and he can colour it in and help me stick it together!

I am also looking for more activities to do with my toddler so can't wait to hear more ideas!