2x2x2 Half cubeA 2x2x2 in a shape with five sides and two pieces glued to another.
2x2x3 Delta prismA simple modification of a 2x2x3 to get a triangular prism representing the Greek letter Delta.
3x3x3 Triangular PrismA 3x3x3 truncated on 3 edges and afterwards extended. The result has a shape like the triangular prism.
BermudaA 3x3x3 in shape of a triangular prism.
Big SeedThe successor of the Seed with five instead of three sides.

