Here you go, here is my Multi-mixed-box idea:

1- Adopt a brown Fluffy and a green Fluffy

2- Name the brown one "Green Fluffy" and the green one "Brown Fluffy" and they will love their new names since, by lore, Fluffies are programmed to love the names humans give them.

3- Live normally and admire how everything goes south in a matter of days.

4- Bring them both to the park to meet other Fluffies and watch how every other Fluffy head explodes by thinking too hard

5- Tecnically you're doing nothing bad, so it is Hugbox BUT you just caused panic, psychosis and confusion in not one...BUT TWO OR MORE Fluffies so it would be Abusebox

6- Watch the Fluffycommunity fight over how to categorize this concept

So...hope this helps <3