&gt; There will be kids showing off homemade spacecraft, Ebola test kits, and environmentally safe batteries.<p>Homemade spacecraft - okay we&#x27;ve all had fantasies of doing this and depending on how far you&#x27;ve gone with it the primary material starts off with sofa cushions or cardboard. The sky is limit (<i>no pun intended</i>) for ideas on it. Environmentally safe batteries- okay there&#x27;s a lot of room for this one too (<i>potatoes come to mind</i>).<p>Not sure about the last one though. How does a child develop an Ebola test kit?!<p><i>&quot;Dad can you get me some Ebola ... it&#x27;s for a science fair project!&quot;</i>