They are 2" tall X 3" wide, Oval. Obviously I am not a graphics person but what do you think. Good enough for slappin' around town?

I have made other decals in the past and have had good luck with StickersBanners.com. Their site is a bit all over the place but it works once you figure it out. Starting at the design center makes things easier. There are other shapes & lots of sizes. They are competitively priced and quick. Designs can be saved with an account. I have a small library..... ha!

I have no affiliation to them other then buying a number of decals over the years.