“Dummies Man” — the spikey-haired character on the cover of the ubiquitous “For Dummies” line of how-to books — is turning up in a lot more places these days.

There’s “Flower Bulbs For Dummies,” “Smart Booster Cables For Dummies,” “Refractor Telescope Kit For Dummies,” “Acoustic Guitar Starter Pack For Dummies,” and “Complete Fuel System Formula For Dummies” for your car.