The Genesis space probe for solar wind particles, which landed with a thud in the Utah desert, may yet yield useable samples. If nothing else, click on this link to see the impact scene, which looks something out of Wile E. Coyote.
The shattered collection surfaces are being pieced together, and scientists are working at finding the solar wind particles amid all the terrestrial contamination. They have been successful enough that they are now accepting requests for distributions .
When the crash first happened, I felt real pain for the postdocs and grad students who just saw their projects obliterated.