"Space Party"

Decorations
Flying space ships: Use 2 aluminum pie plates, one inverted on top of the other. Before sealing together pass a thread or fishing line through the bottom of one and tie or tape. Suspend from ceiling at different heights.
Planets: Tape blown balloons to ceiling with ribbon hanging down. Tape on paper planets at different heights.

Cake
Bake a cake in an oven-proof bowl. Invert cake and frost with gray frosting. Decorate to make it look like a space ship, using candies, frosting and other embellishments.

Goody Bags
Fill with geodes, alien items, astronaut ice cream, and space pops.

Games and Activities
Robot Arm:
Things You Need: Teams of two, (one is the Operator and the other the Robot), bandana or something to cover the Robot's eyes, one or more items to retrieve, timer.
Game: Set the objects in different areas at waist level. Let the Robot see at this point. From a starting point, cover the Robot's eyes. Make sure they cannot see, could even cover their whole head with a brown paper bag over the bandana . At "GO", the Operator must give the Robot commands form a stationary position i.e. forward, left, right, arm out, down, pick-up, etc. These commands should get the Robot to the item(s). The Operator must then give commands to have the Robot return. Time each team. The winning team is the one with the lowest time.
For Younger Players: Have the Robot sit and use only one arm. Cover their eyes and place the objects around them. The Operator then gives the commands for the Robot's arm.
Phone Home:
Give them a mission to build a radio tower.
Things You Need: Blocks of materials that can be stacked. Could also be an assortment of items. Teams of two or more.
Game: On "GO" let the teams begin building for a set period of time. The team with the highest tower built without tumbling wins. The towers must be freestanding.
Alien Planet Exploration:
Hide different objects or space rocks (rocks wrapped in foil or painted gold and silver) in a set-aside area. Other items that could be hidden are plastic Easter eggs with items inside, unusual plastic animals, alien figures, and candies.
Make Aliens:
Things You Need: Toilet paper tubes, yarn, eyes, pipe cleaners, tissue paper, glue, tape, etc.
Let the kids use their own creativity to create alien beings.
Make Spaceships:
Use overturned paper plate and overturned paper bowl glued on the top. Let the kids decorate with stars and glitter.
Space Race:
Let the kids fly their new craft. Have the farthest flight, the highest flight, the fastest flight, etc.