Details I will present in my thread "extreme rare".

5-compound octahedron skewb



3x3x3 Great Rhombic Triacontahedron



Extented Ultimate Skewb Rhombohedron
(first built by Andreas, here with other cuts)



Andreas's Pyrainx, here other orientation of the truncated megaminx inside
This is my first design based on a own mechanism (copied by megaminx)

Claus, it hasn't taken you long to go from 3D printed add-on parts to full puzzle mechanisms. At this rate of progress, I expect the Big Chop in a couple of weeks

Thank you for these non-grouped-images.

I have a few questions:
Why have you designed the "Great Rhombic Triacontahedron" based on a 3x3x3?
Do you intend to sticker that one?
Why haven't you posted the Triakis Skewb here?

I love the Megaminx Tetrahedron! Will it be for sale?

Andreas, all new shapes I test on small cores like the 2x2x2 or mini 3x3x3. The printing costs for this will be less than 20 Euro.

When the shape is ok, I will build a mod based on a skewb or something else. I do not sticker the test prints.
I had forgotten that the Triakis skewb is a new one-

Sigurd, I am planning to offer some designs for selling in the next weeks. But by the Pyrainx and 3 other twisties, I built in the last weeks, I am not the inventor. And in this case I will never sell them. Are you interest in complete puzzles or only interests in masters for casting?

Happy problems like this emerge when you are building to many puzzles.