Just Email him and add the graphics you want with the email. The bigger the graphics the better. He can always resize them down. He is so busy that he doesnt always have time to respond to everyone, so just make sure you add in your email what the graphics you want, your choice of caps, which size ( big chuck or lil chuck) and what size atty you will be using.
He usually answers emails better than Pm..im sure he gets thousands of PM"s...so please just try and email him

Hope this helps.