Mark Grant
Canon user
Noticed these while browsing today and not seen them mentioned much.
Lockcircle body caps, a bit of an extravagance but they do look good.
LockCircle - The Original Body Cap
Video on Vimeo :
[video=vimeo;27162966]http://vimeo.com/27162966[/video]
LockCircle - The Making of - Canon 5d - Canon 7d on Vimeo
They also do HDMI lockport for DSLR users;
LockPort
Lockcircle body caps, a bit of an extravagance but they do look good.

LockCircle - The Original Body Cap
Video on Vimeo :
[video=vimeo;27162966]http://vimeo.com/27162966[/video]
LockCircle - The Making of - Canon 5d - Canon 7d on Vimeo
They also do HDMI lockport for DSLR users;
LockPort