Many people sell things online for fun or to supplement their income, but few of those people seem to realize the importance of good photography in their product listings. Check out this guide to building your own lightbox from Handmadeology. There are some Photoshop steps involved, but they are very easy to follow. If Photoshop has too high a price tag for you, I recommend downloading GIMP for free, or asking your sketchy neighbor to bootleg you a copy. Everyone wishes they had an Asian pirate roommate like I do, but sometimes you must be resourceful all on your own.
I like this person’s idea because it is pretty inexpensive. Decent 50″ tripods can be bought for as little as $10-$15 at Amazon or Best Buy. A DSLR camera isn’t a total necessity for a project like this one; I got through two college-level photography classes on a Nikon Coolpix that was full of beach sand. In my humble opinion, I think you should skip using your iPhone for a project like this one. Everyone can tell an iPhone photo,
even especially with the Instagram filter.