Wire puzzles are difficult to put into categories. The cast puzzles are dominated by Hanyama and these are expensive at £10 each. I have decided not to collect these.
Change of plan. Have now found the cast puzzles at roughly £3 for each one from Chinese companies Ali and Temu. Now worth collecting and they are really good to try and solve.
Fairly common £4 each (11 to collect in set)
Found the actual mad cow puzzle £4
A rare find £12
Great puzzles. 6 levels. Worth £4 each