David Oaks has a huge gallery of minifigs from DC and Marvel, including some characters like the Endless and DareDevil and pals. BTW, it's definitely worth reading through his site for some fun little jokes.
Stefan Reiling has made a number of LEGO-based USB flash drives, including these. I think he sells these and other items - you can contact him via his Flickr account if you're interested.
When LUGs and LTCs put on large displays, you can often find fun little details hidden in there. Look close at the side of the building in this display by the Perth Adult Lego Society at a recent display in Australia.
Given that Peter Parker was a teenager in Amazing Fantasy #15 in 1962, he's in in mid-sixties now. So Piglet Ciamek imagines that he's dreaming of retirement. All that singing about has got to be horrible when you've got arthritis!