Rory scowled a bit. "That's the problem. They didn't wear armor. They wore blue." While he was sure that Amy wouldn't mind, he'd rather not strut about in paint in front of the others. Mainly Captain Jack.
"What about taking both Jack and River then? Gets two in the door while Rose, Romana, Amy and I sneak in. You lot will be plenty distracting." The Doctor was not about to volunteer to do the painting, but it was as solid a plan as they likely would get.