Costumes can bring levity to an otherwise serious situation, as evidenced by the red noses of hospital clowns or the powdered wigs of the British judicial system. Garner guffaws with today’s Groupon: for $15, you get $30 worth of costumes and accessories at The House of Humor in Redwood City.

For more than 28 years, the friendly clothiers at The House of Humor have adorned human mannequins in an array of scary, spicy, and silly outfits for any occasion. The warehouse of accouterments makes every day seem like Halloween with stacks of wigs, masks, hats, makeup, and gag gifts, plus a gallery of garters and lingerie to send red bow-ties spinning ($3.99). The follically challenged can unleash their inner Gandalf or con Grizzly Adams’s grandkids out of a free dinner with a new beard ($9.99–$24.99). Convincingly fake a wizarding degree by dipping into The House of Humor’s cauldron of Harry Potter outfits, or shake up PTA meetings with an arsenal of zombie accessories ($3.99–$9.99) and Steampunk dressings ($6.99–$24.99).

The House of Humor also stocks group costumes for Bay to Breakers events, including an entire hippie kit and plenty of glowing El Wire to signal passing road traffic ($19.99–$24.99).