pacman
Mr. Pacman and his ghost friends
Heath Rice
1995
pipes
3D selfbuiding pipe system
Marcelo F. Vianna
1997
puzzle
the familiar Sam Loyd puzzle
Heath Rice
1995
petal
mathematical flowers
pyro
fireworks
Patrick J. Naughton.
1991
penrose
quasiperiodic tilings
Timo Korvola
1996