Paula, dlf is right. You would be truly blessed to find a place with more people willing to share their time and creativity than here at PTOtoday. The traffic is slow on the weekends but help is always here.
I have some suggestions for your bulletin board project. For long term displays, I like to use fabric. It looks nice longer and hides pushpin holes due to frequent changes of decoration/info. For short term displays with little or no changes, wrapping paper is great. It's pliable, easy to work with and comes in such a wide variety of patterns.
After the event, leave the background up and post photos of families and staff members who attended.
Remember that the night sky is beautiful. Have fliers printed about what will be visible in your night sky the evening of your Open House and encourage attendees to pop outside for a look!
When I heard the Learn'd Astronomer by Walt Whitman.
When I heard the learn'd astronomer;
When the proofs, the figures, were ranged in columns before me;
When I was shown the charts and the diagrams, to add, divide, and measure them;
When I, sitting, heard the astronomer, where he lectured with much applause in the lecture-room,
How soon, unaccountable, I became tired and sick;
Till rising and gliding out, I wander'd off by myself,
In the mystical moist night-air, and from time to time,
Look'd up in perfect silence at the stars.
