I love creating these little pieces of original artwork, and these are from my stash!. They measure 2.5 x 3.5 inches and are called ACEO Art Cards. They can be framed in tiny frames, or collected in albums. This is a great way to collect tinier works from many different artists. You can even purchase frames that are specifically for these. The one below would be an awesome way to show off at least 4 different artists works.