We have connectagon treetops and I think they are a bit difficult for 2 going on 3. We have broken a few pieces as well. There are some plastic sets available- might be better for that age.
How about these:
http://www.discountschoolsupply.com/...&Brand=&Price=
"Someday, I am going to go to bed without toys on the floor and sippys in my sink. Things will stay where I put them and I can have nice, fragile items on display. But when I do, I will look around with a wistfullness in my heart and miss the days where vibrant imaginations ran wild and there was evidence of life happening around me all the time!"