I've done two Fantasy F1 schemes now, inspired by the work of Claveworks Graphics, who have produced a series of F1 inspired schemes for a variety of aircraft, both old and new.
This is a link to their website where you will find the illustrations: http://www.clavework-graphics.co.uk/air ... g_001.html
All the schemes are in side elevation only, and the fun part is determining what the likely scheme would be for the rest of the aircraft. Decals are readily available (although they can in fairness be a little pricey) and searching for F1 Decals 1/24 or 1/20 or 1/16 will usually yeild a multitude of options.
My proposal (Splash's if it bombs don't forget) is for a 4 week GB, any aircraft (not just the ones illustrated by Claveworks) in any F1 scheme. The scheme used must be identifiable as an F1 type scheme, even if not exactly as the original (it can be hard to get all the sponsors logos/liveries/numbers exactly right). It's a great way to use up an older kit, perhaps lacking in all the up to date details, recessed panel lines etc. that we all love nowadays, and to give it some pazazz with an eye-popping paint job.
An example of the graphics: (Credit: Claveworks GRaphics)
And my interpretation:
Over to you chaps (and chapesses)
meant builds not markings 
