I found this aptly named device, The Leach, aimed at the mobile fly tyer via twitter with a photo from TieFliesEasy.com's flickr stream.
"The leach is different than any other vice platform component on the market. It is crafted with a silicone suction that offers the most stable platform available. This unique suction also allows mobile positioning at home, auto or on the water. Made in the USA from anodized aircraft aluminum with tool organization holder and built in magnet for hooks. This platform in compatible with all manifacturated vices and comes in 2 color options, silver and black."
No word on retail price or availability. The website was slated to launch 9-1-09 but we had no luck pulling it up on our attempt.