When I purchase 3D dies through Stampin' Up!, I always keep them close at hand, even when they retire because I do sell at this business and at craft fairs. If you search for Pillow Box Patterns you should be able to find a pattern to cut one of these by hand if you don't have this retired die. The photo below shows you the coordinating 3" x 3" Mini Card & Envelope:
The card is cut at a measurement of 6" x 3", scored in the center at 3" and folded. I used a layer of the Sending Love Designer Paper as a layer which measures 2-3/4" x 2-3/4". The rest of the layers are from the Sealed With Love stamp set and coordinating Love Notes Framelits Dies. Isn't that little teeny tiny envelope the cutest?
I made a bunch of these in different colors. I try to use my retired cardstock to use it up and that's what most of these colors are:
Products Used: (Retired: Square Pillow Box Die, some Retired Cardstock)