The 'Flux Capacitor
' is up for sale in ebay. The seller 83delorean has put in quite some work to recreate the flux capacitor from the movie 'Back to the Future' with real glass tubes and this thing looks real authentic.
The current bid for the flux capacitor is around $450 and if you want it make sure you bid. However, we must warn you: it's unlikely you are going to find a DeLorean to fit this into!