Off the top of my head:
Easter gardens are good. You can make miniature ones from Fruit Corner yoghurt pots. Bend the smaller hole up through 90 degrees - that's your cave. Stick a circle of card to one side - that's the stone rolled away. Fill larger hole with cotton wool, apply water and cress seeds, wait for garden to grow.
Or how about paper palm branches, for Palm Sunday. Or donkey masks.
Frankly, I would include anything involving planting seeds, as long as it is linked to some sort of discussion about new life. Similarly, anything involving lambs or chicks, because they are representative of new life - and of the Lamb of God, in the case of lambs.
I've seen a nice craft consisting of a very simple lamb shape, cut out in felt and stiff card. Glue felt lamb to card lamb, to add stiffness. Wind fluffy wool around its tummy, to make it woolly. Apply wiggle eye (from craft shops), for child-appeal.
Also have a look here:
www.dltk-holidays.com/easter/religious.html
In fact, look at that site for ANY crafts with that age group. It's great!
Can you tell I run a toddler craft group!