triangulation images

http://www.cs.berkeley.edu/~jrs/mesh/
http://www.cs.berkeley.edu/~jrs/

http://puddle.mit.edu/~glenn/kirill/SAGAPIC/membrane.gif (very nice)
http://www.kritzner.de/pages/pov2tri/pov2tri.html (engineering parts)
http://www.medcat.nl/megeeg/chap4.htm (brain)
http://graphics.stanford.edu/data/3Dscanrep/

http://www.cs.utah.edu/graphics/

http://puddle.mit.edu/~glenn/kirill/SAGAPIC/membrane.gif (very nice)