I've just relisted these on Folksy.com and on a whim I offered a 5% discount to anyone who could identify which plant the leaves were modelled on. So, the first person to post the correct answer in the comments here can have 5% discount in my WearItsAt and/or Argentia Folksy shops.
It was a spur of the moment decision to offer the discount but here is the hastily thought up nitty gritty:
Discount is not available on postage. Discount will be applied in the form of a Paypal refund after order has been placed and paid for. Discount is single use although maybe used once in both shops.