Recycling an old glass door can be a wonderful way to show off your favorite piece of artwork. You can use the glass door as a frame by mounting the artwork from the back and letting the glass cover the piece. You can also have another piece of glass cut and sandwich the art between the two pieces to give the art the appearance of floating in the glass. Use a large French door to make a large multi-art frame.
An easy and inexpensive way of framing artwork is to mount your piece on a plate or platter with spray adhesive. Neatly trim the outer perimeter of your artwork before mounting. Use square contemporary plates or platters in colors that match your decor. Use old, decorative plates and platters for more traditional artwork. You can also use a collection of plates mounted on a wall to display a series of artwork.
If you want to get really creative and make a funky piece, you can collect a bunch of old yards sticks for a frame. You can sand, stain or just use the old yard sticks in their natural form for frames or other decorative pieces.
For a single-layer frame, measure the yard sticks for size, and cut them with mitered corners. Put them together by gluing them to a small piece of wood underneath each corner. You can make slightly larger additional layers and glue them on top of each other for a multi-dimensional frame.
Tin or other metal ceiling tiles can be an interesting framing material for your favorite piece of artwork. Older style pieces will look especially beautiful in a back-mounted frame made from decorative metal ceiling tiles.
Mount a number of decorative metal tiles on a piece of wood in a size four or more inches larger than the outer perimeter of your artwork. Mount your stretched canvas piece on the front of the ceiling tile -- leaving four or more inches to show from behind the piece for a vintage look.