For my friend's birthday, I made this bag for a bottle.
I measured the base & added an inch to each side & the height. After I cut the polka dot fabric, I realized the bottle is round & larger on top compared to the base. So, I cut 2" strips of denim and sewed them into the sides.
I sewed the bag inside out & closed up the bottom. I sewed a gusset on the bottom. Last I undid 2 seams opposite of each other and put ribbon that they looped open on opposite sides. I pinned the ribbon so it didn't interfere with the seam/alley(?) I could've fed the ribbon after but didn't have much time.
This is what I'm going to do from now on for wine bottle gifts (or other bottles).