I just did my twins(3yo) Wizard of Oz party this past Saturday and it was a HUGE success! Here is what I did:  Invitations where printed off my computers using clipart from ozwiz.net. Decorations: Color scheme colors of the rainbow(all colors and it looked really good together) Balloon Rainbow arch....blew up balloons with air compressor tied two together and then twisted around 1/2 inch pvc pipe(used 2 with a connector) and then anchored it in two buckets of sand. Yellow table cloth was the yellow brick road(games set up along the road).  Dorothy's house...refrigerator box painted with doors and windows cut out with witches legs sticking out from underneath complete with ruby slippers. White hose stuffed with newspaper wrapped black electrical tape every so often with old red shoes that I sprayed with glue and rolled in glitter.  Oz...sky magic castle(the girls B-day present) got from big lots great deal Table decorations: hot air balloons...brown paper bags rolled down to look like baskets then balloons on a stick glued into the bottom. Also made these and filled them for goodie bags(skittles, bubbles, rainbow pencils and erasers, m&m's, glow sticks, tops(those turning toys)etc.) smaller balloon arch over gift table Games: Twister: prizes hidden in hay and spread around the room. Children turn around 3 times like a twister and then search for the prizes. Help Dorothy get rid of the witch: Black balloons with coins inside. Each child takes a balloon and pops it the one who finds the shiny quarter wins.  Call Glinda: give them bubbles and the one who blows the biggest bubble wins the prize  Throw the apples in the basket(used red balls from ball pit) the one who threw in the most apples won a prize  Pin the heart on Tin man-made from cardboard painted silver hearts from funfoam that has sticky on the back Melt the witch: lemon lime Kool-Aid but in ice cube trays add a tooth pick and freeze. Give each child an ice cube and tell them to melt the witch...the first one to bring you the broomstick wins. then we helped Dorothy get home(hot air balloon pinata)  I labeled all of the food with Wizard of oz names and printed tags with pics of the character printed off computer.  Melted witch(green Jell-O with a black plate and cone shape for witches hat shaking in it)  hay chips...potato chips  broomsticks...pretzel sticks  Toto Dogs....hot dogs Cowardly lion burgers...hamburgers We're not in Kansas anymore salad....broccoli salad  Rainbow pasta salad Rainbow pasta(plain for kiddies that don't like salad)  Munchkin mix...skittles, M&M's, crunch and munch, rainbow marshmallows, potato sticks  Rainbow ice cream Rainbow cake decorated with Dorothy on the yellow brick road. As the kids arrived they all sat down and colored pictures that I printed off the computer. When everyone got there they all planted poppy seeds to take home(used wizard of oz cups to plant them in)  Then we all went and started the games: First they were twisters, then we followed the yellow brick road to where Dorothy landed on the wicked witch and we played pop the witch....next we called Glinda...then they picked up lollipops that the Lollipop League left them to welcome them to munchkin land, we continued on the road and tossed the apples inn the basket, then pinned the heart on the tin man, melted the witch so that Dorothy could go home and finally did the hot air balloon pinata.  They ended up in Oz(the Sky magic castle) where they got in and played until dinner was ready. We ate, they had cake and ice cream...played a little more and then the girls opened presents. As each person left the girls gave them a Doctrine of Thankology for them coming and helping them celebrate and also their goody bags in addition to the candy they had collected playing games. The balloon arch was used again last night for bridal shower/cookout so doing it with air versus helium it can be used over and over. Everyone had a good time and can't wait for next year!