Just Frame Them
One of my daughters framed some butterfly artistamps a few years ago and they look beautiful hanging in her room, so with that inspiration I started making larger prints from my designs and made them available both framed and unframed at Cafepress- not to mention some on mugs and tiles. 
Though the mugs and tiles will be harder to reproduce, it's easy to create a print for your wall yourself, add a mat and frame from the local craft store, and have a quick piece of art or a nice gift without too much work or expense.
This is a simple example, a free download from Artistampede, my ever changing catalogue of artistamps. I just printed out the image on the paper that made the image look best. in this case it was a matte photo paper but your choice is as good as mine. I then matted in a clean white so as to not overpower the pale spring green of the image.
The lines of the brushed aluminum frame in a deep blue/black are a perfect way to define the lines of the piece and pick up the contrast in the image itself.
You know you can do something like this easily. And I'd love to see what you do and where you use it.