How do I open the trunk?

Hint 1 of 5:

You couldn't open the trunk before.

Hint 2 of 5:

What do you have now that you didn't have before?

Hint 3 of 5:

Use the small hook on the trunk.

Hint 4 of 5:

Now you have clothes.

Hint 5 of 5:

If you look in the trunk again, you'll also find some ribbon.