First of all there was this 12seconds clip from Documentally, about a dog and a field mushroom:
Mushroom The Size Of My Head on 12seconds.tv
… which later prompted this parody from AndrewJHolmes, about another canine and a fairy-tale mushroom:
documentally mushroom on 12seconds.tv
In other news
While you’re there, check out AndrewJHolmes’ answer to the 12 challenge: If I could hang out with any famous person it would be…
12 challenge: If I could hang out with any famous person it would be… on 12seconds.tv