On my way up to my house in Campton, we often stop at the McAulifee-Shepard Discovery Center in Concord, NH. This is a great space museum with excellent planetarium shows. The last time I went there with Leonardo and Alejandro, we got to handle some space shuttle tiles.
If you want to order a Space Shuttle tiles for your school, this might be your last chance. These are actual real Space Shuttle tiles (that obviously they do not need anymore). You can order them through GSAXCess. The cost is $24 for shipping, but the actual Space Shuttle tiles are free. They are great for thermodynamics experiments. The ordering system reopens on Sept 12th! Order early and often! I used these tiles in my physics classroom when I taught in Philadelphia.