Disney Princess Party-3 year old. This was my daughter's 1st party, and she wanted a Princess Party, with Ariel/Little Mermaid as the main theme.  We invited 5 of her friends. (4 girls, 1 boy) Invitations: I sent out Princess invitations (purchased at Party City) For: Princess Molly's 3rd Birthday Where: Molly's Castle.  I requested each child to dress as her favorite Princess (or Prince for the boy). (Her birthday is on Halloween, and most of the children were planning to dress as a Princess anyway.) Decorations: I decorated the Living Room/Dining Room with pink, white & lavendar streamers & balloons, Disney Princess tablecloth on the dining table, and Disney Princess banner across the room. Activities:  I purchased jewels & gold paper crowns (Oriental Trading Company). The children decorated their own crowns (I used glue sticks, but it wasn't strong enough to hold the jewels on...I'd suggest mom's helping with Elmers instead).   Each guest then got an 8" colored Canvas bag w/jewel designs pre-decorated with crown, flower, butterfly. On each bag, I painted "Princess ______" (guests name) (or "Prince ____" for the boy) with a fabric pen. They used these bags to collect their treats for the "treasure hunt." I set up 6 Disney Princess posters (12" cut-outs made of cardstock from Party City) around the house. Under or near each poster was a basket or bag filled with Magic Stones (colored easter eggs). Each egg had jewelry (necklaces, rings, braceletes), tattoos, body jewels, etc. Children were told to find a Princess picture and take one egg from each location. (I tried to keep eggs at each location with the same type of "treaure" to keep it fair for all kids). The kids loved the treasure hunt so much, they asked me to hide the "stones" again so they could run around the house looking for them.  I let the older kids-my 6 yr old son, 6 yr old neice & 8 year old nephew-hide the eggs this time. All the eggs were empty, but everyone, even the older kids, had a blast searching again. (Everything for this game was purchased from Oriental Trading Company, including the bags & pens to write on them). Another game was Hot Potato, using an Apple (for Snow White). The kids had fun telling me the story of Snow White before the game (I prompted them with questions..."Who do we know that eats an apple? What happens to her?)  When a child "lost" in this game, they actually won a prize (I found at this age that to lose a game like this turned into tears) so I sent them into the kitchen for their treat bags.  The real winner got to eat the apple. Treat bags:  I used their canvas bag, which I filled while they had pizza, between games. Inside each bag I put their treasure hunt prizes, coloring pages (I purchased a big coloring book that featured the 6 main Princesses & just tore out 6 pages for each child, tied it into a scroll with a pink ribbon), small box of crayons, Princess Stickers, and their crown if they weren't still wearing it. The boys got the same, but instead of the stickers, they got a Hot Wheel car.  The Cake:  it was a standard 1/4 sheet cake decorated in a Hawaiin theme with ocean, sand, palm trees.  I used our own "Little Mermaid" figurines to decorate for the Ariel theme. After cake, we opened gifts, played a bit more, then sent the kids home. Total time, 2 hours. Total Cost, around $100.  It was fun planning, and my daughter, and all her guests, including the moms, loved it.