I lost a huge box of BIONICLE stuff (I've definitely talked about it here before), and it's probably my most cherished lost possession. It had all the Nuva, all the Rahkshi, all the Bohrok-Kal, the three large Takanuva-wave sets, and some miscellaneous stuff (Gali Mata, two Toa Metru, etc). I have dreams about it sometimes. It sucks.