The rarest item is probably the golden wrench. 100 were given out total during an event, and then eight of those were destroyed for charity.
-unknown contributor
Nope. I'd say the rarest would actually probably be either VALVe weapons, or if you're talking about items in general, the top Notch, being given ONLY to Notch, (previous) head developer of Mojang, the company that made games like Cobalt, Scrolls, minecraft and 0x10c. The golden wrench is rare, and all of that is true, but I'm pretty sure the saxxy is rarer, being given (annually, so it will go down in rarity eventually) only to the winners of the replay competitions.
-Wrath
fgegdg
Your TF2 may appear rainbowy because you have an item equipped on to one of your characters, such as the Pyrovision Goggles, which activates Pyrovision. To disable it, remove the item that activates pyrovision from your loadout.
teddy bear
A woven blanket.
something from the movies signed by the cast
ghjgi gtgy8ui ytujh uygt
Probably the town hall model as it is the hardest thing to get.
the webkinz loading chair it is the rarest item to possibly find on webkinz and troughout webkinz world but it comes up everyonce in a while i found it once but sold it sadly and i havent found it since
Diamonds. But in the next update (which is 1.3) emeralds are going to be the rarest item in the game.
a dog it is actually the pink heart stage o_O
Command Blocks
i dont know exactly but starsword breaker is prety rare now. corecting myself escherion or hydra armor are the rarest drops -rarest thing i have that i see no one with is the platinum axe of destiny