And by the way, 20mm calibration cubes make great props for photos.
Aside #2, the photos above were taken with my brand new photo box. It's a super cheap package and folds up extremely thin. Packs a heck of a punch for the price.
Final aside, files up on thingiverse. TARDIS pin and GuyFawkes pin.
EDIT: I actually typed this up before GuyFawkes day, but owing to my own duh-ism I failed to post it. It's been sitting in my draft. So, a bit late for this years festivities, but still a cool looking pin.