Place the cookies in a plastic bag and crush them. You want mostly crumbs but some larger pieces are fine.
Add the crushed cookies, gummies, cocoa powder, & sugar into a bowl. Use a wooden spoon to mix.
Grate the butter on the largest setting of a cheese grater, and put this in the bowl.
Use your hands to mix the mixture until fully combined. Make sure to stop when the ingredients are fully combined, as over mixing will cause the heat from your hands to melt the butter.
Put parchment paper down and form the mixture into a log. Roll the parchment paper around the log, twisting the edges to tightly pull together the ingredients (like a tootsie roll!).
Put the log (still in the parchment paper) in the fridge for about an hour. When completely chilled, use a knife to cut it into slices.