I've actually been finished this one for a while, but I was waiting to see what the 12th Doctor's sonic screwdriver would look like. Based on on-site photos, looks like it will be the same as the 11th Doctor's. I'm hoping this changes, at which point I will revisit this:
Prints, shirts, pillows, phone cases, clocks, mugs, shower curtains (!) and more available through Society6 and Redbubble.