do you know whats in it? I dont want to unfold it if its some random junk I found it just lying around the site like hte trinket thing

It's never the same item, you can get anything.

oh thanks I'll see what I get heres what it said: You open the 5th Anniversary Yellow Star and inside is a Secondary Starlight Hairclip AND 4112sP

They're all brand new items. Therefore, not junk.

ohhkays, thanks

You can find a list of some item, more being added as they are found, here.

~ It's part of the site's fifth anniversary celebration. There are a few different colours of the paper stars floating around the site, and they contain exclusive fifth anniversary items. Be sure and click any that you find, because they have some nice stuff inside! ;3

Whats better? Opening the stars or selling?

Thanks for the link!