Jenny List over at Hackaday recently posted about the Pimoroni solderless headers. Met with a certain amount of resistance and skepticism from the Hackaday crowd as to the suitability of both the method of hammering in the pins and their longevity, she decided to conduct an experiment. Following the hammering of the pins to secure them, she removed and replaced a Gert VGA board from/to the pins over a hundred times. She found that the pins were absolutely fine and solid after the experiment, proving, at least in a slightly unscientific way, that the method is sound. Read more over at Hackaday and see a speeded-up video of the experiment below. The kit to fit the solderless headers, and the headers themselves are available from Pimoroni.