Toroids are solids with genus, i.e. showing a number of holes in their surface.
Here are a few Stewart Toroids (Toroidal solids with regular polygon faces)
built with Geoshapes. Detailed information on these structures can be found at:
http://www.uwgb.edu/dutchs/symmetry/stewart.htm
and, of course, in Bonnie Madison Stewart's book "Adventures among the Toroids",
Okemos, Mich. 1970 (2nd rev.ed. 1984)
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Near Misses
Near Misses are polyhedra which are almost Johnson solids, i.e. their faces are nearly regular polygons,
though not quite. More information on this subject can be found at:
http://www.cs.washington.edu/homes/csk/tile/nearmisses/
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