I have purchased all three types of O-Rings offered by WASD, as well as the soft and firm landing pads from Elite Keyboards, and they all finally arrived today.
I am selling 23 sample packs of 5 of each type of key dampener, so 25 pieces total, at $3.65 + shipping. Shipping is just a standard envelope with the orings enclosed, by regular post, and is thus $0.45 for domestic, and $1.05 for international (or so it seems).
To order please send me a PM with how many sets (otherwise I will presume 1), your paypal email, and your shipping address. I will PM you my paypal email once I verify that I still have stock and that shipping is correct to your location. This also ensures that people don't send me money after all sets have been accounted for!