Random Jack Jr Modern AU things that could turn into a full fic but have refused to so far No. 10000000000000:
Over the course of Jack Jr's babyhood, he pulls out an alarming number of earrings, nose rings, and even a lip ring because among the adults looking after him they're all so incredibly stubborn about wearing whatever jewelry they want, even around a baby.
They accept that it's their fault; there's no bad blood between them and the literal baby, but Anne does insist on saving every single piece of jewelry (with the owner's consent and after helping them find a new piece) and putting them in this cool antique box she found at an estate sale (per the person running it, said box may or may not be haunted, which she absolutely loves.)
Which would be whatever, but everyone agrees it would be funny to give those to Jack Jr once he's older (he also gets a box with his baby teeth, a detail I would be adding into this fic because yes my own mum has tried to give me all the baby teeth of mine that she collected. No I do not know why she thinks I need them lol) and poor Jack Jr just. Has no fucking clue what to do with them.
He's eighteen and heading off to college and he puts them in a cardboard box of sentimental stuff from home that lives under his bed, then it follows him up the coast with his girlfriend to Maine, where it gets hidden on the top shelf of a closet and he almost forgets about it.
At least until Anne or Mary or Ed or Izzy call to check in on him, knowing he likely won't ever listen to their voicemails (he's told them he won't, but he absolutely does) or call them back. Then he pulls the box down in the hour or so before his girlfriend-now-wife gets home from work, and lets himself break down and cry over how much they care for and have cared for him from Day One. At the same time, he's struggling to forgive them for not having done more to try and get him out of the custody of his grandmother, so it feels so unfair. They care, they cared, but none of that caring feels like enough.
The thought of how they wanted to mark every little thing he did, even something like tearing out an earring to the point the ear nearly needs sewing up (Izzy's never held it against him but has said it hurt far worse than he had thought it would), is beautiful and painful, and when his wife gets home and asks if he's been crying, is he okay, because of course she can tell he's been going through 'that damned box of bad memories', he lies and says it's his allergies, but...could they maybe go wander around downtown to some of the jewelry shops this weekend, so he can buy himself some new earrings? (he only got his ears pierced because he wanted to look like his parents/guardians, to be as cool as they were to him then)
And he won't tell her, but she'll quietly notice, how the earrings are always a style that he does like, but that also look like something Anne or Mary or Ed or Izzy, or even Jack, would pick out for themselves.