"Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a tatol mses and you can sitll raed it wouthit a porbelm. This is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe."
Go to a sign shop and see if they have any UV Vinyl film they can design and cut for you. It will look very custom and will not look blotchy like uv paint will. It will cost more to do than going with paint, but if you are dead set on something like that, go with a sign shop.