Domsliced Pentominoes

The domsliced pentominoes are pentominoes with half of two neighboring squares cut away.
The pieces were suggested by Roel Huisman in the last century. For hand solvers it should be possible to produce 5-fold replicas of the pieces. The shown 6-fold replica was produced
by program. All replicas are possible. Interesting for solid pieces are the 4x4x9 and 6x6x4 boxes, because some pieces must be orthogonal to the other ones.