I love the decorative flap of the Hero Hues envelopes by Hero Arts. They come in a variety of colors, but sometimes you're looking for that "something special" to hold your handmade cards. Why not make your own envelopes with the Hero Arts Envelope template? You can use any DP you want to match that special card you worked so hard on.
Simply trace, cut & score. Template will make a standard A2 size envelope, with decorative flap.
There's also a template for the envelope liner.
Now you'll have a beautiful envelope to hold your special card.