Old blocks are delightfully seaworthy. You and your deckhands can glue, paint, and decorate them, and -- splash! -- one plaything becomes another. Accessorize your vessel using household items with undiscovered nautical potential. Man made his very first boats from wood, so you are upholding ancient tradition while at the same time recycling.
Martha Stewart Kids, Volume 8 2003
To outfit a whole marina full of speedboats, yachts, clippers, and dinghies, just add odds and ends from around the house. Pick items that are already waterproof: Make a smokestack from a tub stopper; cut a sail from an overnight-mail envelope; fabricate a fishing net from an onion bag. As for where to set sail, ponds and streams are good for expeditions, but the tub or kiddie pool can also offer a fine day of leisurely sailing. Anchors aweigh!