Under $15, you say?
It can be done! With the help of online sales at Joann and presentation paper. I bought four simple black 8.5″X11″ frames on sale online for $3.59 each. Free shipping (only have to spend $25) and no tax (hurray, DC) gave me a total of $14.36 for four frames. I printed out a couple cheery art pieces on nicer presentation paper (just a couple cents per page) and there you have it! Little gallery (much smaller scale than my giant photograph one seen in previous posts) to brighten up a blank, sad, white wall in my apartment.