Here's my collection. It's not very large, but I just got into it a few months ago.
A mass produced 2x2x2 by Verdes. Sold in traditional and pillowed shape and with back and white body.
CUBE (SHAPE PRESERVING)
A corner-turning hexahedron. Very similar to the MasterSkewb but without its corners.
CUBE (SHAPE CHANGING)
A 3x3x4 with two layers removed but not hidden.
This is a newer version of the Megaminx, published by Meffert, with tiles and 12 distinct colors.