The Battle DomeA simple custom 3D printed puzzle. Each edge can turn 180 degrees and scrambled with the U/D slice.
The elements IThere are different shapes to be made to find all the solutions. It is a 2x2x2 with several cubies glued on.
The X floppA floppy cube, with fisher cuts and a displaced center.
Tower 2A 2x2x3 with each corner split in two pieces.
Trick DominoA 2x3x3 treated like a windmill cube. Two identical looking but different versions exist.
Trio Cube HybridThe Trio Cube from Calvins Cuboid series with circles on two sides.
Twisted Assembly PuzzleThree 2x2x2s each with additional cubies glued on. In their "solved state" the three puzzles can be assembled into a cuboid.