scale - Bowling
Do it yourself Bowling Ball Layout Kit w/Quarter Scale - $59.99
A scale can either be in form of a linear scale or one that is represented in the form of words. Having a map that is used as a scale for one that does not have a scale does not serve any purpose. In fact, it only makes the construction of maps more ...
I did some digging around and couldn't find pix of bowling ball cupcakes. But I did find some of soccer ball cupcakes. I'll add the link to the site with those. You could, with a little ingenuity, adapt the soccer ball ones for your bowling party.
Most bowling alleys have a pro that works there. Talk to the pro and see if they offer lessons.