While looking for pieces inspired by Mucha, I found these beautiful headdresses by Kiko (Lady Gaga head-wear favourite) for Asley Isham's SS11 collection.
I don't know if they were originally inspired by the works of Alphonse Mucha, but they certainly look like a more exotic, futuristic take on his flower adorned ladies. There is a definite resemblace:
I especially like this look. The colour pallete is beautiful, almost bridal and definately Mucha.