I flirted with the idea of getting a melanger for making peanut butter and tahini at home, but my blender hasn't burned out yet (yay blendtec) so I haven't need

I flirted with the idea of getting a melanger for making peanut butter and tahini at home, but my blender hasn't burned out yet (yay blendtec) so I haven't needed to explore this with any urgency. If anyone can recommend a way to make home nut butters and tahini with less heat than a blender I'd love to know.