Takeout boxes to use for Viennese Hour?

I went to a friend's wedding a few years ago, and she had little bakery type boxes at the Viennese Hour so people could take some things to go at the end of the night when they left. And she also had a sticker with her and her husband's name on it with the date. I thought it was so cute and really want to do that at mine. But she can't remember where she got the boxes from.

Does anyone know of a place or website to recommend for getting these type of boxes? And where I can get stickers with our name and date on it?

You should ask your RH...mine said he they will give out containers. Save you some $

is this something that the RH will charge you extra for? i want to do this also but heard if you do take out boxes they'll want to charge you more money