that's exactly what I did last summer..told him what I wanted and then .......
he bought the wood,
primed it,
drew the pattern (which I had chosen)
painted it (let him chose the colors)
frame it
.........and then it was his job to figure out how to hang it.
took some coaxing, as he wasn't too happy about holes in the vinyl siding... but it looks really good... and I think he's as happy as I am with the final results.