The episode has only just aired but Forbidden Planet have already revealed details on brand new merchandise from The Impossible Astronaut, including t-shirts, folder bags and mugs with characters and quotes from the episode on them. See a list of links for each product below, thanks to Combom.

T-Shirts
Stetsons are Cool – Black, White
Silence will Fall – Black, White
The Spaceman is Here – Black, White
You Do Not Interfere – Black, White

Folder Bags
You Do Not Interfere – Colour, B&W
Eleventh Doctor in Stetson
The Silence
The Spaceman

Mugs
Eleventh Doctor in Stetson
The Silence
The Spaceman
River Song