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 & girl! Gingham check trim is a natural for this back to the farm theme! Pair it with solids in Classic Red and Fresh Lime to add the perfect POP of color on your table top!