I purchased some canvas sheets from Hobby Lobby and cut my own Art Trading Cards or ACEO's. They are always 2.5 x 3.5" and I found that you get more for your money by making your own. Of course, you can do the same thing with Watercolor, Mixed Media or Drawing paper. I have had some success listing ACEO Limited Edition Prints on Ebay and thought I would give ACEO Original's a try. This little mini art fits in perfectly with my desire to create every single day. While having my morning coffee I will often listen to relaxing music and play with mini art. It is important for the collector that you include the title, date, medium, signature on the back. I always also include a stamp with my website address. I did find that canvas is a bit trickier to work with this small and I admire some of the artists that get really detailed. I will try to update you with new creations as I go along and hope to inspire fellow artists out there to take a few minutes and create each day.