When you think about it, Bill & Ted and the Doctor both travel through time in some sort of public phone booth and they both have sexy babes travel with them at times. You can buy this most excellent shirt for only $22 on RedBubble.
Link
Update 6/30/11 by Alex: We've also got a lot of neat Doctor Who stuff in the NeatoShop!
Bonus: The booth was technically stolen in Bogus Journey.