Solutions for all levels.
Some may take a few tries, as precision is key.
38, 48, 49, 50 have notes.

38. Initially place square in the middle, then place second square (as the last piece) in the same place as the first square

48. Place ball when ship is tilting right

49. Place left piece upright, and right piece facing left, let them fall into eachother

50. Have the lower left two roll into eachother

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