Icosahedral Pencil Holders

Here are two icosahedral pencil holders.

They were constructed by replacing the triangular faces of an icosahedron with triangular motifs like those in thing 75045 - Desk Ornaments. The topmost face of the icosahedron was deleted and a prism added to the base.

Stl files are:

icosa_holder_4.stl
icosa_holder_12b.stl

and the openSCAD code is: icosa_holder.scad.