try: http://come.to/pervy.tool.time#

I made the braided flogger from an old leather skirt (charity shop), everything else can be sourced from a good DIY/hardware shop (I recommend looking at stair rails for your handle, they're already nicely shaped and it's cheap to just buy one). It was time consuming but very easy to make, it only cost about £7 all-in.

Also run a few searches on "DIY floggers" or "homemade bdsm toys", there's loads of other sites out there.