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Popular Mechanics Co.

"The Boy Mechanic: Volume 1 700 Things for Boys to Do"

When the
performer wishes the hand to move he pushes the plug in, which
turns on the current and causes the magnet to attract the iron in
the wrist, and will, therefore, make the hand rap. The switch can
be made similar to an ordinary push button so the rapping may be
easily controlled without detection by the audience.


** Making Skis and Toboggans [3]
During the winter months everyone is thinking of skating, coasting
or ski running and jumping. Those too timid to run down a hill
standing upright on skis must take their pleasure in coasting or
skating.
The ordinary ski can be made into a coasting ski-toboggan by
joining two pairs together with bars without injury to their use
for running and jumping. The ordinary factory-made skis cost from
$2.50 per pair up, but any boy can make an excellent pair far 50
cents.
In making a pair of skis, select two strips of Norway pine free
from knots, 1 in. thick, 4 in. wide and 7 or 8 ft. long. Try to
procure as fine and straight a grain as possible. The pieces are
dressed thin at both ends leaving about 1 ft. in the center the
full thickness of 1 in.


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