Explain me :
i don't have valkyrie hair but in the game i have this , and i want to have my swag cap but i don't can't look this

It has been posted approximately 7482737393847 times, but here we go:

3d items are currently broken, devs know it and will provide us with a fix as soon as possible

Uhmm, could you further explain this, I do not quite understand your problem.
If it is about your objects not showing up, it's because of a bug that is currently being fixed by devs.
If this isn't what you are referring to I do not understand this question.

Ikoorie, hi! Right now there's a bug in the game that for some reason will shove a random item onto your face, even if you don't have that item. This is because the code for custom items(specifically the new wings) was recently updated and there's a conflict with certain code, which causes this weird glitch. Everything is screwy, but sit tight and everything will be sorted out in the coming weeks.

These threads are getting ridiculous. Read announcements people!