Longform names for Penny?

Looking for long form names for the nickname Penny that aren't Penelope. Penelope is a lovely name, but I'm writing a story and Penelope isn't the right vibe. I know Penny can stand on its own, but I want to keep options open.

Edit: y'all are fantastic! I've fallen in love with Persephone, has the same "ee" ending sound as Penelope but with gentler consonant sounds. It also has more options for nicknames, which I like. Thanks for the help!