Costello’s graduation gift to Sullivan, what do you imagine was in the box? There’s something more to this scene, it’s NOT just a gift.

I know this sounds extreme but hear me out. Watch Sullivan’s expression when he opens the box, it’s a nervous smirk before he shows any appreciation.
I think the box contained two things, a financial endowment of some sort along with an item/s representing control and fear.

Like a $200,000 dollar Rolex wrapped around someone’s scrotum or a large sum of rolled cash nestled around someone’s scrotum.

There’s something about this scene that always catches my attention and makes me feel uneasy, yes Frank is giving Sullivan a gift but he’s also letting Sullivan know that he owns him now and there’s no going back.

Thoughts? What do y’all think was in the box?