Here's how I make my cubes - Make a base bead, slightly larger than an average round bead. Any decoration that will be melted in can be applied before you mash your cube. After you have your decorated base bead, heat it until it softly glows, then take it out of the flame for a second or two. Once it begins to cool off, you can mash it. Don't wait too long, or it won't mash, but you do want some resistance so the glass doesn't go everywhere. When you go to shape your cube, hold the bead in your left hand so that the hot tip of the mandrel is pointing at you. Hold it straight, parallel to the floor. Make sure you keep it straight while mashing, or the cube may not be straight. (I know, sounds scary, but it's okay). The mashers will be in in your right hand, perpendicular to the bead in your left, but still parallel to the floor. Mash the bead lightly with the mashers on one side, then the rotate 90 degrees to do the other side, quickly, then flash your cube (Waving the bead in and out of the flame slowly) back into the flame. Don't push too hard while mashing, or your bead will be rectangular. Been there. :) Once it's slightly glowing again, mash it again, really slightly, to sharpen the edges. Then, make sure you firepolish it to get all the chill marks off the surface. Do this by slowly moving each side of the bead in and out of the flame while it softly glows. Not enough to kill the shape of the bead, but enough to remove the chill marks. This takes a couple of minutes. After you have your cube, you can then add any surface decoration that will stay raised. While doing this, it's important to flash your cube every 10 seconds or so, so it stays warm and does not crack. That's how I do it, but YMMV. :) Hope this helps!