I have very few rare puzzles.. if you even consider them rare. I mostly just have the standard of everything. I occasionally attempt to get a rare collectors, but money is an issue.
3X3X3
Rubik's Cube
Official Rubik's Cubes manufactured in the 1990's and 2000's
4X4X4
5X5X5
FOUR
Pyraminx
The black 1981 Meffert version.
HEADS & OBJECTS
SIAMESE & FUSED