One option for building Airfix's excellent 1/350 Trafalgar Class submarine is HMS Trenchant. This was her in a disruptive colour scheme just proving not all submarines are boring...? Paint scheme not included in kit but I have colours if anyone's interested?

Hi Pen Pusher,
A very different scheme, that would stand out against other submarine models. Hopefully somebody will seek your help.
Bigkev

Whatever next, pink destroyers??
Haddock.