If you're going to paint it anyway, why not take a favorite target, cut it out, and glue it to a piece of hardboard. Cut that out, and use the outer part as a stencil you lay on a piece of paper, then spray paint on it to print any number of targets you want. Just buy a roll of heavy kraft paper to make the targets from.
15 BMW RnineT
10 Ducati 1098 Streetfighter S - "Sleipnir"
09 Kaw Versys
67 Triumph Bonneville TT Special