Ideas for making a cake for boyfriends birthday

So my boyfriends birthday is on Thursday, he’s turning 23 and tomorrow his new song he’s been working on is going to be releasing and he’s been talking about it non stop. I was thinking for the cake I could do his song cover but I’m not even sure where I would start. I looked into a edible printer but I wouldn’t have it in time😩 his song cover has a guitar on it and I’m trying to figure out how I could stencil it onto a cake maybe, and use purple icing and what not? I was it to at least resemble the cover in a way.