Does anyone know if a grocery store that has a cake bakery will make an edible image that I can put on my homemade cake?

i dont know where your are located. but most grocery stores in my area (CT) will make an edible image. the price ranges from $6.00 - $8.00 a sheet.
however they will not make any copyright images.
HTH

Good advice. Around here it's Safeway and Fred Meyer that do them for $6-10 a sheet. Depending on your time frame, there are also online companies that will do them,

Awesome! Thanks!