John Hancock had such an unforgettable signature that people still use his name to refer to signatures. If you want a John Hancock as memorable as John Hancock’s, create something in the twist of letters that catches the eye. Sizing, spacing and color all play their part in creating something that people will think of when they consider signatures. Don't be forgotten. Pick up a pen and try out something new with your name.
Type your name into a word processing program. Highlight it and apply different fonts, looking at the shapes of the letters. If you see one you like, try writing it on some scrap paper to develop the base of your signature.
Attempt to add interesting flourishes, loops or dots to your signature. They shouldn't look awkward, but should blend in almost like a tribal symbol.
Find places in your signature where you can include pictures. A girl named Melanie could write her signature so the M is a crooked heart, looping the first side of the M up with a slight curve and bringing both base points to the right in toward the one on the far left.
Write the signature you've developed larger and smaller than your test runs. See which makes it look more interesting and unique. Decide on a size for your permanent signature.
Use a quirky color for signing your signature on any non-professional documents. If you always sign letters with green, people will associate your signature with green while others' signatures will lack a color association.