“When your miracle gets here, you just pound this button once, it'll call back both shuttles.” 

From the Firefly episode “Out of Gas,” this is the button that Wash programmed to call back the shuttles.  According to the DVD commentary, it was given to Joss Whedon after the show ended so he could call back the cast.  

This includes a print-in-place switch that is the first moving part I've designed.  It is very important to get a good first layer on it.  There are three switches in the same housing.  These are not the same three switches that Wash loves to use for everything, sorry.  

You may need some super glue to hold things together.