If you are a collector, this might be a nice chance to get a genuine Farscape prop straight from Gigi herself. She just put up her Chiana contacts for sale on gumtree. Why would she sell them? Well, here is what she said about it:

After contemplating about it for awhile now, I've decided I don't have any use for them anymore as they are just sitting in a closet collecting dust. I would much rather have them go to a good home ...where they can be on display and well loved.

So there you have it. If you always wanted to have the original Chiana contacts in your collection, here is your chance.