The Kaslideoscope is a Single-Triple T-Spin shape.

Kaslideoscope

Note: You need to change directions for the 3rd and 4th rotation on the first piece. For the first piece in this example, the T is rotated twice clockwise and then twice counterclockwise.

Empty Field Setups

Though slightly impractical, one can also open with it.

Kaslideoscope MTD

Afterwards, one may continue with a T-Spin Double or Triple. Imperial Cross is also possible.