My daughter turned three and it just worked out that we did an owl theme party. We had a few extra large owl pinatas to use as centerpieces and then we went from there with the theme. Here's a version of the invitation. I had printed an extra large 3 from the computer, covered it with 3 different washi tape solids/patterns and then cut out the number by hand.
Here's the party favors that we filled with little goodies. Thank you pinterest for some wonderful ideas!