Farm Party Supplies, 1st, 2nd, and 3rd Birthday Party Supplies & Decorations. It’s a barnyard full of FUN! Our Farm Party birthday supplies bring a host of happy farm animals to the party. Old Macdonald had a farm EIEIO with a chicken, pig, horse, cow, duck, and a red barn too. This classic barnyard farm theme is sure to please every boy or girl! Pair Farmhouse Fun party supplies with coordinating solids in Classic Red and Fresh Lime to add the perfect POP of color on your table top!