you need bits for ceramic/glass. be sure and set the object on some towel or rags to absorb the pressure and go really slow/ Some people will set the object in a container or water others might spritz as the go...

You can get the bits at Lowes/HD/Harbor FGT. The best price is Harbor/set of 6. Says glass or ceramic bits. I dip mine in a glass of water every little bit. Start with the small 1/8" bit and drill your hole, then move up to a larger bit. Let the bit do the work with minimal pressure from you on the drill. If you exert too much pressure, you will have more broken china to mosaic with. LOL
I put one hole in the back for hanging, two small ones in the top (handle side) for ventilation and let the spout be the drain hole for the bottom. I have a lot of them under my patio and they are gast becoming inhabited as the weather is very cold here. Good luck, any more questions let me know. Carol

Great, thanks!!!
...oh, listen, there's the dinosaur whistle...time to go carousing the neighborhood for STUFF!!!

That's so cool Flag, I love your teapot bird houses!

If I am trying to put a hole in something like a teacup that has a foot which will act as a sort of water well, I fill that area with water and drill away. When the point of the bit goes thru, the water usually drains out fast, so I do what flagtruck does and start dipping the bit every minute or two. The trick is to keep it from getting hot and burning out the cutting edges. The same dipping action works for anything that doesn't have a "well", but I usually fashion my own for the sake of time. You can use kid's clay (cheap stuff from $ tree), roll a rope long enough to surround a large enough area to be practical, seal the edges to the piece you're drilling and fill the resulting well with water.

Pat