The material used are layers of plastic screwed together by 3 screws. It seems that we can unscrew the screws, I did not, but if anyone did, please let me know.
The first one is called Hard-Boiled Coin
|Nothing has moved and the coin is out? Come on, I have hidden the trick lol|
The second puzzle is called Hole Vacancy Coin and has a different shape and different colors
The coin is not blocked the same way in both puzzles even if the mechanism is pretty much the same kind. You immediately know what you have to do but the trick is so well hidden that you may have some difficulties to solve the puzzles. At least I had.
Mineyuki designed other same kind of puzzles, but they seem to be very rare.
I like these puzzles, they are nice and I like the way they are solved. However, the solving process is somewhat similar...and for the Hole Vacancy Coin, when I "reassemble" the puzzle it jams a little bit...
Cu-Japan sold some of them. Perhaps you should ask them if they still have some on stock.