I bought the white spotty material at Joelle's Fabric Clearance Warehouse, which I discovered when searching for swimsuit fabric on Ebay. I noticed their physical location was quite close to where I live, so one day I set out on a swimsuit-fabric-buying mission and was not disappointed - this place has loads of the stuff and it's quite inexpensive. The spotty fabric was a huge piece of remnant that cost me only $5, and I also got some UV-rated chloroban fabric in pink stripes to make a two-piece out of.
R wore her new bathers to the local pool the other day and looked so cute in them. As I've said before, I really recommend this pattern for anyone wanting to give bathers a go. I also heartily recommend the use of ice creams as a modelling prop (a.k.a. bribe) - this was far and away the most pleasant photoshoot I've ever done!
Happy 2015, everyone!