When planning our Spring Break food experiments my son suggested making cheese. After some research, we chose a fresh cheese so we could taste it and enjoy it right away! We found a terrific tutorial online and we can honestly say it was easy, fun and very tasty! It was also very educational to see the changes the milk goes through.
I found vegetarian liquid rennet and citric acid at The Gourmet Warehouse, Vancouver, BC, where they have a good selection of cheese making supplies. http://www.thekitchn.com/how-to-make-homemade-mozzarella-cooking-lessons-from-the-kitchn-174355