I originally designed these marble blocks for a toy company (mindware.com)
who approached me. But I have not heard from them since 2013, so it's
safe to say that it's going nowhere.
Instead, you can buy a set of plans for the blocks and make your own.
I originally used some of my fancy tools when I built these,
so here I'm demonstrating building the parts again, this time
with more basic tools.
From time to time, people ask if they can buy the blocks. Sorry, I do not make these for sale.
But if you want a toy in similar spirit, you can search fur "Cuboro blocks", or "Haba kugelbahn".
or "Quadrilla", though none of these have cool stuff like the marble pump or the flipflop.