Anyway, I decided I'd like to look at the cup more often and wanted to make a planter out of it. The problem was drainage. I'd heard that it's basically impossible for a novice to drill a hole in a ceramic cup. This turns out not to be true.
First, a word on cordless drills. If you don't know how to use one, it's time to learn. I don't care if you're a 105-pound woman with absolutely no interest in tools and a husband who does most of this stuff for you. You need to learn because it will feel awesome and empowering and make a ton of little projects easier. If you have no idea where to start, email me--I was clueless about cordless drills until recently.
Anyway, to drill a hole in a ceramic cup, you can use a diamond-tip drill bit, but don't need one. I don't have one, so I plowed ahead with the set that came with my drill. (My drill is similar to this one, but a 14.4 volt.) I started with the smallest bit in my set. I drilled and drilled, stopping occasionally to blow away the ceramic dust and make sure the bit hadn't burst into flames. Starting is the hardest part; it takes forever to bust through the glaze. You'll drill for five minutes and make an absurdly small divot in the bottom. Don't give up. If you break a couple bits, it's okay (I did).
Next, switch to the next size drill bit up, to widen the hole. Then the next size up, then the next, then the next--you get the idea--until the hole is the size you want it. I always adjust the angle of the bit, too, chipping away at the edges of the hole a teeny bit at a time. Like I said... this project requires patience.
When you're done--kabaam! You have a cool planter that you can dress up any way you like. To the left, you can see the one I made. I used a paddle plant that was wallowing in a too-large container, then added some different-sized rosettes around it and finished it with some small, multicolored rocks. I was pleased with how it turned out, and it's currently brightening up my kitchen.