gifts I think my favorite bllk ships gave each other!!
kaiser - he would give isagi something blue rose themed, like, a display like the one from the beauty and the beast, and make isagi promise to love him even if he stays a beast forever.
isagi - he would give kaiser something practical. not expensive or maybe he splurged a tiny bit but what matters is the soul. He'd give him a customized matching mug set with their names and connecting visuals. like a puzzle with only two pieces, better yet, he attended a pottery class and made them himself.
bachira - he'd get rin a lego set, or something that they can spend their time on creating together, he'd definitely make impromptu pieces and place them on the main piece anyway.
rin - he would attend an art class and make bachira a piece of art. Its either horrid or the best technical piece you've ever seen, and its a marriage of their two 'monsters' together. (metaphorically)
nagi - he wouldnt put much effort into it, a plushie he won at the arcade a few days ago, or a sweater, but something that ultimately reminded him of reo.
reo - he would SPENDDD but between every splurged gift he would overthink it, and end up getting two to four things that he got, that dont have to do with price, that he simply thought would make nagi happy
ness - ness would get hiori a newly released piece of literature he thinks hiori would enjoy and read it with him together!!
hiori - a ticket to the movie theatre to watch a new fantasy release just so he can see the way Ness lights up, and then theyd rewatch their favorite movies together at home.
shidou - shidou would gte something with a really dirty sub text, or put a bow on it. Either way, Sae knows this is Shidous way of showing his love, so he doesnt mind.
sae - sae would get shidou something similar to what rin got bachira, but he probably had it commissioned, a painting worthy of explosion.
kunigami - kunigami would get chigiri a bunch of cosmetics, and he'd make sure to triple check all of the benefits and setbacks they could give chigiri, particularly focusing on ones that help chigiri with his injury.
chigiri - he would get kunigami a charm, a lucky charm which he bought from a shrine he visited just before heading back. There was a much more visible keychain and something about it felt like Kunigami to him.
barou - expensive pieces of jewelry, hand picked by himself truly for the glammest man alive.
aryu - in contrast to the high end jewelry barou gives him, aryu gifts him classic timeless antique jewelry from his family antique shop.
aiku - He'd spend a whole year cultivating a garden to pick out the best flowers at the end of the year to give a bouquet to Sendou, complete with notes about how much he adores him.
sendou - he would spend time looking for swedish delicacies to remind aiku of his hometown, and ifbhe couldnt find any he'd take the time to bake them to the best of jis ability.
BONUS : Isagi got Kaiser a bouquet of blue roses and baked rusks for his birthday.