You can copy the designs onto plain white paper, pin it to the quilt top and machine quilt through the paper. If you want to hand quilt, a stencil works best but you can sew through the white paper pattern without thread and then use the powder form. The tool for that looks like a blackboard eraser, you get it full of the powder and then stomp it on the quilt top. Tedious but it works.
If you can't see the design enough to copy through onto typing paper, use a thinner paper you can see through or darken the design in the magazine with a black pen.
I have tried many different pencils for transferring designs and they all work to a certain extent and the marks either disappear by themselves or are erased with a soft cloth or water. A lot depends on the cloth you are putting the design onto, color wise.
Carol J.