I had  Winnie the Pooh party theme for my daughter's 3 yr old party. I made computer invitations using a "Pooh Print Shop" disk that had Pooh on the front inviting them to come to the party. I mailed them in Pooh gold envelopes that I got at an office store and put a Pooh sticker on the back.  When the kids came, I had a "Hunny Pot" plastic clear rubbermaid jar filled with honey graham jelly belly jelly beans (You could use Pooh graham snacks) and used a black paint pen to write "Hunny" on the front, tied a gingham yellow ribbon around the top and stuck cute bumble bee stickers all around it.  Parents and kids were invited to guess the # and put it in a bowl.  The winner took it home.  I drew a Pooh face and had it xeroxed off at the office store on Pooh yellow,cut it out (and the eyes out) & hot glued a stick to it the back.  I xeroxed party hat shapes and cut them out.  When the kids came they got to "Decorate and glue a party hat for Pooh" and I gave them stickers and a glue stick. They stuck the hats on the Pooh faces and pretended to be Pooh. I hired a Pooh to come, and served pizza, Pooh graham crackers, fruit, Pooh fruit chews, Pooh juice boxes and cupcakes with Pooh's face on them. For party gifts, I got beanie bag Poohs (buy one get one free) at the Disney store. That was it for activities as they awere 3 yrs and under.