An Egg-shell Yacht.—Next time mother is making cakes, or anything which needs eggs, tell her you want the shell intact, and ask her to let you blow out the contents. To do this, bore a small hole at each end, and blow. Of course, if you have ever collected birds' eggs, and are an adept at egg-blowing, you will only need one hole.

Stop up the holes with sealing wax or plasticene. This complete shell is to form the hull of the yacht; it will be necessary to add a keel, mainmast, bowsprit, &c., to finish the craft.

For the mainmast get a very thin piece of wood—a very thin piece of bamboo or a piece of split cane will do—and pass it carefully through two holes which have previously been bored in the opposite sides of the shell. Let it project an inch or two below (Fig. 97a). Fix in position by means of sealing wax. In similar fashion arrange a bowsprit.

Fig. 97.

As the hull is very light, it will be necessary to have a good steadying keel. A piece of sheet lead about 2 in. long and 1 in. wide will do admirably. Secure it to the shell and the projecting piece of mainmast by means of sealing wax (Fig. 97b).

Now if this floats properly you can proceed with the rigging, which may be as simple or as elaborate as you please. Fasten the spars to the mainmast by means of very thin wire. (Sealing wax will do, but is not at all reliable for this.) For the sails use tough tissue paper, gluing the main and top sails in position, and fixing the jib and foresails by means of threads.

The addition of a cardboard rudder—fixed by wax—will complete a trim little craft which will sail in approved regatta fashion, if it has been properly adjusted (Fig. 98).

Fig. 98.