Changing Pip on a Card – Card Tricks for Kids
Cut out the center pip on the five-spot of spades with a sharp knife.
Cut a slot centrally in another card, about 3/8 in. wide and 1-1/4 in. long.
Glue the surfaces of both cards together near the edges to form a pocket for a slide, which is cut from another card and has one-half of its surface colored black.
A drop of sealing wax attached to the back of the sliding part, so that it projects through the slot, provides a means of moving the slide in the pocket. A lightning change can be made from a five-spot to a four-spot while swinging the card.
THE BOY MECHANIC – BOOK 2
1000 THINGS FOR BOYS TO DO
HOW TO CONSTRUCT DEVICES FOR WINTER SPORTS, MOTION-PICTURE CAMERA, INDOOR GAMES, REED FURNITURE, ELECTRICAL NOVELTIES, BOATS, FISHING RODS, CAMPS AND CAMP APPLIANCES, KITES AND GLIDERS, PUSHMOBILES, ROLLER COASTER, FERRIS WHEEL
HUNDREDS OF OTHER THINGS WHICH DELIGHT EVERY BOY WITH 995 ILLUSTRATIONS
PUBLISHED 1915, BY H. H. WINDSOR CHICAGO
POPULAR MECHANICS CO. PUBLISHERS