Ask HN: Are there any cheap configurable time-based OTP tokens?

Can anyone recommend a cheap configurable time-based OTP token device? Ideally something similar to Google's Authenticator Android app that can be given a secret then automatically generates time based RFC-6238 codes but all within a small low powered token device. Also should be cheap to configure (eg via Bluetooth or usb); the secret seed should be secured on the device. Something available in Europe would be ideal.