Turns out making your own marshmallows is pretty easy. According to Nomageddon, all you gotta do is this:
We need a Kitchen Aid Stand Mixer with the whisk attachment. We also need powdered gelatin, vanilla extract, candy thermometer, and a piping bag fitted with a 1/2 inch (Ateco #12) tip. Step 1 is the activate the gelatin. Pour a 1/3 of a cup of water into the mixing bowl and then pour the contents of 1 gelatin packet on top. Let it sit for 10 minutes. While the gelatin is…um…gelling, add 1 cup of sugar and 1/4 cup of water to a small sauce pan. Clip your candy thermometer to the side and bring to a gentle boil over medium heat. The mixture is ready when it reads about 235ºF (~113ºC). This should take about 10 minutes so the timing is perfect. Pour the mixture into the stand mixer bowl and give it a gentle stir with a spoon to break up any leftover gelatin clumps. Add the vanilla extract and turn on the mixer at medium-high speed, and whisk until super fluffy (9 minutes).
Once you’ve got your turd mixture, scoop it into a piping bag and squeeze it out into little turd shapes: “you don’t have to squeeze too hard, but you do need to concentrate to get a beautiful BM. However, if your Texas Turds are not holding their shape and looking more like runny Mississippi Mud, wait a minute and let the marshmallow cool a bit.” Once you’ve got your mallows looking poo-like, cover them in brown decorating sugar.
You can either leave them in their natural state, or add little bits of marshmallow for an emoji face.