For my daughter's 2nd birthday party, we did a Zoo theme.  For the invitations, I printed the following verse on heavy card stock:  "Sarah's turning two and it's sure to be a ZOO. So join us for some punch and cake, we'll make an ANIMAL out of you."  There was a jungle-animal border around the verse.   We converted our garage to party central, but kept all of the food in the house. I put out pretzels and animal crackers for the children and some meatballs and dips out for the adults. I used different bright colored party goods - orange plates, lime-green and dark green napkins, red and yellow cups.  I put a yellow table cloth on the food table.  Upon arrival, each child got to reach in and select an animal mask (Oriental Trading). I took pictures of each child wearing his or her mask.  There were twelve children in all (ages 18 mo - 9 years!) and each seemed to really enjoy the masks.  We set up a table with an orange table cloth in the garage. On it were placed animal stickers, markers and crayons and brown craft-paper gift-bags. Each child was invited to decorate a goody bag.  As bags were completed, I brought them in and lined them with leopard print tissue paper and added stuffed zoo animals that "talked" when pressed (Dollar Tree), more animal stickers and lollipops. Drinks were stocked in the garage - kids juice boxes in a washtub filled with ice and adult beverages (soda, beer, bottled water) in a separate cooler. For the cake, I made a three layer cake, frosted brown on the sides with yellow "roping". On the top, it was frosted with green "grass". A Fisher Price (Little People) elephant stood on the grass.  I used chocolate wafer cookies to make a cage around the elephant. For a finishing touch, I pressed animal crackers around the sides of the cake.   In addition, I made some cupcakes, frosted white with sprinkles and stood an animal cracker on each one. We played "feed the tiger" with a large picture of a tiger with an open mouth. I made bean bags out of unmatched socks and the children took turns throwing them into the tigers mouth.  Since this was a 2-year-old party, this was the only organized game.  For other activities, I provided side-walk chalk and bubbles for blowing. Also, all of the riding toys were available to the guests.  Gifts were opened indoors with each guest getting their picture with the birthday girl as she opened each gift.  Upon leaving, the party guests were given their decorated and stuffed goody bag.