these are my twisty puzzles from the summer of 2008, so bacically my collection within a year.
A custom built 3x3x3 variation that functions as a 3x3x3.
Meffert's six colour 1982 version. Roughly 31 mm along an edge.
SIAMESE & FUSED
Try and remove the inner sliding mechanism, blocked by knobs you can only turn one at a time. Like Spin Out, but the size is smaller and the knobs shows elephants.