There is a guy on eBay that sells the glass whip kit for $25.00 with free shipping.
http://www.ebay.com/itm/Arizer-All-Glass-Mini-Whip-Set-for-Extreme-Q-and-V-Tower-/231625771251?pt=LH_DefaultDomain_0&hash=item35edf8c8f3
He sells lots of arizer parts, I bought an elbow from him.