The Vatican's Swiss Guard, the colourfully dressed mini-army that helps protect the pope, will have cooler heads now they have swapped their ancient metal helmets for ones made by 3-D printers.

The helmets cost a fraction of the price of the older ones — roughly $1,000. This initial roll-out was limited to 98 helmets, with 120 more expected later this year, according to SWI.

The Vatican's Swiss Guard, the colorfully dressed mini-army that helps protect the pope, will have cooler heads now they have swapped their ancient metal helmets for ones made by 3-D printers. The ...