I have also been working on a badge design for badges to go in with my packs. I had to do the badge 38mm, but had to leave a 4mm bleed around the edge, so I did this by creating a cut line I could follow. I have done 3 badge designs, which I will decide on which ones to use.
I think I am going to use the red badge, as after some feedback, Marion suggested uses red as a main colour, and then the colours on the stickers as spot colour to go on my zine. So I think the red will be more appropriate. Also, the checkered red and white is like a picnic blanket style, which works well with the food idea.
And I wanted to produce 15 badges, so I created badge sheets I could print the whole lot off at one with.