I have this idea pinned on my Cool Ideas bulletin board on Pinterest. It is such a great idea, that I have already used it twice. The first time was for Megan's guests to take leftover cupcakes home from her 16th birthday party. The second time was for a bake sale. It is perfect for a bake sale.
You will need a 9-oz, clear-plastic solo cup, 4" x 9.5" bag, twist tie or ribbon.
Here is a really cool tip: Place an undecorated cupcake into the cup. Fill a decorating bag with large tip with frosting. Frost cupcake while it is in the cup. Try not to touch the edge of the cup.
Place cup into a bag. Close with twist tie or a pretty ribbon.
It also makes it really convenient to transport your cupakes to where they need to go!