Headcanon time for (some of) my ships.
Symbolism
MaTch (Marco x Thatch)
Marco always have something yellow on him, not just his belt or the color of his hair. No, he has a golden ring on his left index finger, given to him by Thatch. It's subtle and not many notices it by first glance - or second.
Thatch has a silver necklace with a blue phoenix pendant around his neck, which was a gift from Marco. Only very few have seen it and know that it exists. He has never taken it off.
MaZo (Marco x Izo)
Marco has small cherry tree in full blossom tattooed on his right shoulder. Underneath it, both his and Izo's name are tattoed. It's his second tattoo and he doesn't plan on getting more, as he only wants tattoo that has a deeper meaning to him.
Izo has two phoenix hairpins, given to him by Marco. One blue and one red. He wears it on special occasions, though they're always with him. That way he fels connected with his lover, even when they're apart.
ThaZo (Thatch x Izo)
Thatch has a cherry petal with Izo's name tattooed on his chest. Furthermore, he has a necklace with a cherry as a pendant, as cherries are Izo's favorite fruit.
Izo has a knife and a cake roll with Thatch's name tattooed on his right chest. From Thatch he was gifted a dark purple kinomo with blue edges and cherry petals falling down on the right side of it, alongside a yellow idument.