Creativity. Now in a handy witch’s brew.

We’re all about bedknobs and broomsticks this week. First, we learned that Stephen Hawley Martin, co-founder of The Martin Agency, is descended from a witch hanged in Salem, Mass., in 1692. Now, we get an e-mail from the kooks at ihaveanidea, telling us they commissioned a witch named Heidi Reiss to forge a creativity potion “that will enhance the creative abilities of advertising professionals around the world.” (“I know it sounds fucking crazy, but it’s not a joke,” said the e-mail.