On Wednesday 12th October I shall start a new 10 day auction for one of my Tetrahedron puzzles. I made about 15 of these several years ago, all of which are now gone. The one I am auctioning is a brand new remake. I made it exactly the same way as the originals apart from the stickers which now have a protective covering. It is made from a full size skewb so it is a bit large though it moves extremely well. When I started transforming Skewbs the mini ones weren't available plus I think the normal Skewbs have the best movement of any puzzle.
This puzzle is commonly known as the Halpern-Meier Pyramid though I don't think it has ever been factory produced. I am sure someone will correct me if I am wrong.
The puzzle will be available for inspection at this years Dutch Cube Day.

Mini-skewb mechanisms aren't robust at all. Too easy to come apart I think if they're extended. Too bad there isn't a middle sized skewb to work with. Something much more durable than a mini but not quite full sized like the regular 56 or so mm skewb.

Mind you, I have 2 puzzles built by Mr.Okamoto: Mental Block and the Pyracue.
Both are based on the mini skewb and are pretty solid. I quite like their quality!
Vadim

You're right, it shouldn't be just about my personal experience with the mini-skewb. But I've even had them fall apart in my hands even when unmodified.

Correct If I'm wrong but this always reminds me of a bandaged Master Pyraminx. Do you think so?!?!?!?!?!? I do!!!!

I concur. A bandaged master pyraminx.

I have 2 questions for you Tony Fisher.

How sharp are the edges/corners?

How strong or durable is the puzzle?

I always find it difficult to rate sharpness. You certainly won't cut yourself with it but it will hurt if you poke a corner in your eye. Just kidding, think of it as a scaled up pyraminx and you won't be far wrong.
It's pretty robust so you can use it freely.
BTW Nobody played with it at Cube Day and it safely made the journey home.

YEA I WON AGAIN!!!!!!! 2 for 2 on Tony Fisher's auctions that I bid on and win.

I just got it today from my friend and it looks very beautiful . Thanks a lot I love the puzzle. I haven't check out the dvd but I will soon.