What’s better than your speed demon’s favorite Hot Wheels? An edible candy version, of course.
Local dad, tinkerer, and Wired blogger Ken Denmead’s new book, The Geek Dad’s Guide to Weekend Fun, shows you how to collaborate with your budding scientist on everything from homemade robots and dry-ice ice cream to chocolate Matchbox cars.
1. Prepare a food-grade silicone molding compound per instructions. (Denmead recommends Silicone Plastique, available online at makeyourownmolds.com, $25.)
2. Use enough to envelope the toy but leave an opening through which to pour the chocolate. The best strategy is to keep one side flat to prevent the mold from rolling around while the chocolate is hardening.
3. When the mold is set, carefully stretch it over the toy to remove. Then wash the mold with soap and water.
4. Melt chocolate (white, dark, or milk) and pour it into the mold.
5. Be patient enough to refrigerate overnight.
6. Carefully remove the chocolate from the stretchy silicone mold and enjoy.
It’s a race to eat it before it melts.
The Geek Dad’s Guide to Weekend Fun is available online at amazon.com, $11.
Pasados del Presidio Afternoon Fun for Kids
What: Free music and hands-on re-enactments (adobe brick or tortilla making, pottery) to celebrate San Francisco’s past.
Why: They were born yesterday.
When: Fri., noon-3 p.m.
Where: Golden Gate Club, 135 Fisher Loop, near Infantry Ter. Info at 415-561-5418.
San Francisco Birth & Baby Fair
What: An intro to Bay Area parenting resources, plus a marketplace, mini massages, and workshops like Stroller Solutions and Birth Options.
Why: You have a lot to learn.
When: Sat., 10 a.m.-3 p.m.
Where: Fort Mason Center, Festival Pavilion, 99 Marina Blvd., at Buchanan St. Tickets online at birthandbabyfair.ticketleap.com. Adults, $8; 18 and under, free.
Second Annual Ghirardelli Square KidsBash
What: Train rides, a rock wall, and live music with proceeds benefiting Project Night Night.
Why: A street festival with a G rating.
When: Sat., 10 a.m.-4 p.m.
Where: 900 N. Point St. (415-775-5500). Tickets online at ghirardellisquarekidsbash.eventbrite.com. Adults, free; children 10 and under, $15 in advance or $20 at the door.
Illustration: Bradley L. Hill / Courtesy of Gotham