Curate, connect, and discover
Here's some names I think the 2012 turtle's would call their cousins. As well as what I think their age order would be
DaVinci: Blue, Little Blue, Baby Blue, Speedster, Clown, Blueberry, Red, Teddy, Reddy, Apples, Purple, Plum, Rook, Orange, Pumpkin, and Sunshine.
Sanzio: Blue, Bluey, Fruit basket, Clown, Smurf, Speedy, Red, Rad Red, Reddy, Spikes, Big guy, Purple, Twinkle toes, Booty shaker, Orange, Sunshine, Tiny, and Little man.
Niccolo: Blue, Cobalt, Glacier, Speedster, Blueberry, Red, Reddy, Firecracker, Flames, Spicy, Strawberry, Purple, Othello, Circuit, Grapes, Dragon, Orange, Citrus, Pumpkin, Zest, and Tiger.
Simoni: Blue, Big Blue, Blueberry, Jack Frost, Sonic boom, Cookie monster, Red, Rad Red, Teddy, Reddy, Firecracker, Strawberry, Hot Sauce, Boomstick, Purple, Sugar Plum, 9000, Softie, Terminator, Orange, Tiger, Fanta, Sweet n' Spicy, Good Doctor and Monarch
Okay, here's their age order for me, might get shifted in the future though.
DaVinci -> Red -> Sanzio -> Niccolo -> Purple -> Blue -> Simoni -> Orange