Blocksma, Mary and Dewey EASY-TO-MAKE WATER TOYS THAT REALLY WORK, Simon and Schuster Books, New York, 1985. Softcover in good condition, ex library book, diagrams and clear instruction, 60 pages. Some really great toys to make that involve water play, tools and supplies, tips and ideas. Lots of ideas, make a balloon boat, balloon pontoon, raft, water tiles, bubble builder, mini whale, hoop ball, sun boat, row boat, ready rider, power tower, expandable steamboat, horseshoe paddler, and lots more. This will keep the kids occupied. Older kids would be able to use this book on their own.