Well, sort of... some Minecraft modders just posted a plugin for the third-party Bukkit server modding system that allows players to summon a tree octopus by placing a gold block on top of a tree.
The tree octopus is actually a stock Minecraft squid, but the game's squid only have eight appendages, so they can't really be squid and must therefore be octopuses (then again, they also have teeth, so perhaps we can't rely on anatomical accuracy.)
The mechanism to summon them was inspired by my advice to a young reader asking about tree octopus donations. However, the modders (or at least one of them, Camcade) seem to be confused about what I wrote and think it's a scam:
The website instructed people to help save the tree octopus by putting money up in the trees so that the tree octopuses could make nests out of the bills. Of course, this was a scam just to get people to put money in trees for other people to take.
We here at ZPi have always advised handing bills directly to tree octopuses, not just leaving them in trees where unscrupulous passersby may deprive needy cephalopods of nesting material. If some shady website is advising you to just throw money into the woods, please report it to your local chapter of the Sasquatch Militia.