I just used a gentle running faucet in the sink and did everything as quickly as possible. I never bathe kittens unless it is absolutely necessary but when you do the warm towels are a must! My dryer runs non stop trading off the two towels until the kitty is warm and dry.
If it's just one end that is causing problems you could always try Sirrahbeds famous "Buttbath". Do a search for buttbath and you will find a very detailed description with great photo instructions!!