I recently (about two months ago) filled a fish bowl with live sphagnum moss and put Heliamphora minor x heterodoxa, Utricularia sandersonii and some pygmy sundews in it and sprinkled some Drosera regia seeds on there as well. So far they all seem to be liking it and all the seeds germinated. It's on a south facing window but the light is filtered slightly. The lack of drainage isn't as big of a problem as some make it out to be and the living moss provides ample 'breathing space', and even if something should go wrong it's easy to see it on time through the clear glass bowl.
Next time I won't put pygmy sundews in this kind of setup anymore, though, because they're so small you can barely spot them against the moss. I water until the water level reaches 2 or 3 cm, then wait until it's fully depleted again (but the moss is still wet) before watering again. Easy to keep track of, easy to care for and it looks nice (and will look even better as the plants slowly fill up the bowl). The plants would grow just as well in a normal pot, though.
I'm thinking of doing a similar setup with a Nepenthes, but the only one I know of that would stay compact inside the bowl is Nepenthes argentii and it's pretty expensive.