Though the most expensive option, custom framing offers limitless possibilities to finish your artwork exactly as you want. If possible, I recommend using a local frame shop for custom framing, as you can meet with them in person to discuss available options.
However, I have always had a great experience with an online framing company called Simply Framed. Click the button below to see their array of options, and please let me know if you would like any assistance coordinating your frame order.