Spirograph, distributed by
Kenner Parker Toys, Inc. (KPT)
(c) 1987 by "it's" division Kenner Products, Cincinnati, Ohio, 45202
Consumer Affairs Dept: 1014 Vine St., Cincinnati OH, 45202

Pieces in our Spirograph game, showing numbers of teeth on each.
(Factorizations show powers of 2 3 5 and 7 respectively)

Yellow Rings:
105 inner/150 outer	(0 1 1 1, 1 1 2 0)
96 inner/144 outer	(5 1 0 0, 4 2 0 0)

Blue:

Wheels:
84 teeth (35 holes)	(2 1 0 1)
80 teeth (33 holes)	(4 0 1 0)
72 teeth (29 holes)	(3 2 0 0)
63 teeth (25 holes)	(0 2 0 1)
60 teeth (23 holes)	(2 1 1 0)
56 teeth (21 holes)	(3 0 0 1)
52 teeth (19 holes)	(2 0 0 0) x 13 !
48 teeth (17 holes)	(4 1 0 0)
45 teeth (16 holes)	(0 2 1 0)
40 teeth (13 holes)	(3 0 1 0)
32 teeth (9 holes)	(5 0 0 0)
30 teeth (8 holes)	(1 1 1 0)
24 teeth (? holes)	(3 1 0 0)  [sorry,lost this piece!]

Oval: 60 (2 1 1 0) teeth in the union of 2 half-circles. Short way it would be
the same size as a 51-hole, long way about 73. (They appear to be sections
of an 80-hole circle.) 13 holes in various locations.

Triad: 54 holes (1 3 0 0), 3 arcs of the 80-tooth wheel. 12 holes, various.

Stick: 150 holes (1 1 2 0) total: the semicircle caps are from roughly a 24-tooth
circle, leaving about 63 teeth per side on the striaght sides. 5 holes
equally spaced along one edge.

Quad: Appears to be the region bounded by the unit circle and the curve(s)
|xy|=c; outer edge is from 60-hole cicle; inner edge just contains a 32-toother
but has no teeth. Teethed areas are 4 arcs of 6 teeth. 10 holes.

Pink:

Ring is 176/224 teeth. Corners match the 96/144 ring, so the straight parts 
must have 20 teeth each (both inside and out)
(4 0 0 0) x 11 !

Other is sort of a triskelion, 174 total teeth. Ends appear to match the stick;
curved sections appear to be quadrants of the 96/144 ring. Whew!
(1 1 0 0) x 29!

GCD of all tooth counts:
2^5 3^3 5^2 7 11 13 29