Michał Kosmulski:
Decorated icosidodecahedron from Penultimate Modules
Michał Kosmulski:
Steinhaus puzzle (a variant of Soma Cube) — assembled
Michał Kosmulski:
Steinhaus puzzle (a variant of Soma Cube) — individual pieces
Michał Kosmulski:
Penultimate Unit tutorial
Michał Kosmulski:
Dodecahedron (Penultimate Unit)
Michał Kosmulski:
Cube (Penultimate Unit)