by An Ordinary Man (the novel)
“Richard and Liz clinked together like magnetic toys when they found themselves alone in the hallway outside the room in which the mixer had been held in and they never strayed far from each other after that.”
Back in the 1960s, or even the ’50s, they used to sell these from the back pages of comic books; a pair of tiny plastic dogs glued to magnets. The magnets, of course, attracted or repelled each other, making the dogs either clink together or shy away. Not much of a toy, really.