The crew, who call their squad the "Lil' Babies" all got matching tattoos in 2015. They each got the outline of a heart - with Kylie getting hers on the back of her upper arm.
"Lil babies, in NY, 3/5 of the tats," she wrote on Instagram.
Now, the friends have another way to show their friendship, thanks to Justine Skye who had these custom necklaces made for all of them.
"Throwback nameplate Christmas gift for the babies, minus Kendall and Hailey's thank you @sneelyjewelry for helping me make my vision come to life," she captioned the photo above, which shows hers, Jordyn's, Stass' and Kylie's necklaces.
SUCH a cool idea...and we love the way they came out!