Dad's toolbox. Materials, tools, measurements, tips and techniques

Dangerous décor. Godzilla skyline ; Martian door decal ; Twisted pen caddy ; Flower power tank ; Magnetic bookends ; Earthquake coat hook ; Alien abduction mobile ; Beware of stuffed animal! ; Claw-though-the-wall picture ; 1-ton lampshade

Home hacks. Snappy toast rack ; Trashy lights ; Titanic bookshelf art ; Sitting on eggshells ; Cat-trap birdfeeder ; "Stop the pigeon" weather vane ; Table leg moon mine

Suspect science. Slingshot car launcher ; Spaghetti & marshmallow Eiffel Tower ; No place like home Twister ; Nontoppling T. Rex ; Extreme car ramp ; Marvelous marble bouncer ; Balloon ballast balancing act ; Teddy through the center of the Earth ; Rubber band rocket car ; Blazing volcano ; Gravity-defying black hole

Geeky gadgets. Submarine vs. squid ; Milk shake monster ; Ratapult ; Atlantis escape chute ;

Remote release zip line ; Eating Nemo ; Steampunk balancing robot ; Towering toy crane

Covert creations. Sword transformer ; Reversible castle ; Snail soup decoy ; Customizable "keep out" sign ; Surveillance camera stash ;- Bunk bed communicator ; Priceless picture safe

Arty party. Cheeky fortune-teller ; Mouthy monster trading cards ; Bee swarm chandelier ; Sneaky cake thief ; Radioactive sports drinks ; Snakes and ladders ; Whacky gadget army paper targets ; Saber-toothed spiders ; Modern fossils ; Shark bite paper plate

Playful parenting. Giraffe growth chart ; Mommy rewards ; Zen napkins ; Frankenstein fling ; Pop-up roses ; Target place mat ; Mars pop-up card ; Trail of ZZZZs ; Rock, paper, scissors dice ; Hugs and kisses card ; "How deep is your love?" card ; Spider surprise card ; Jelly bean reward rocket ; "I love you this much" card

Appendix: Project templates.