Fotodiox has a deal on speedlight modifiers, just for today. The kit includes:
For today (12/5/13), the kit is $67.48, half off its regular price of $134.95.
I haven't tested any of them myself, but they seem similar to the Speedlight Pro Kit, which has been out for a few years now and does have samples, and was even tested by David Hobby. There's also a more detailed review here. Again, this Fotodiox kit is not Speedlight Pro Kit but looks pretty similar, so I think they probably function similarly.
Note: We're not affiliated with Fotodiox and receive no compensation for the links here.