In one sentence, describe what the following article is about:

While Perler beads, jump rings, and Perler accessories can usually be found in craft stores, you might have to order the key chains online. You can also just use string to attach your creation to the item you're accessorizing. Pull out a pegboard, if you're using one, or use a hard, iron-safe work surface like a wooden table. Carefully move it in a circular motion, making sure that all of the beads are fused. Pressing too hard or moving too roughly can knock beads out of place! Completely fused beads shouldn't have visible holes in the center. Put a heavy flat object on top of your creation and let the beads cool.

Summary:
Gather your materials. Prepare the work area. Press the hot side of the iron over the beads. Set the iron aside.