Let's see...

For Kaien, his Christmas gift exchange will be a sage green pashmina scarf.

And outside the gift exchange:

For Len a brown scarf.

For Neil a set with a tie, handkerchief and cufflinks.

For Minako a pair of hair pins.

For Subaru a pale beige hat and his friend Kamui a black, purple and blue scarf.

... and even the tsundere TRC!Kamui-chan gets a gray and black scarf =D

All of them with a single note attached to their boxes which signs: "Hope you liked your present. Ade ♥".