I think the Thiel outriggers (for 1.6, 2.4 amd 3.7) are purposely built for the dimensions of those speakers. However, this may do the job for your Adagios: http://www.positive-feedback.com/Issue46/zeeba.htm
Will Thiel 3.7 Outriggers work on other speakers?
I have a pair of Zen Adagios and a 9 month old who is about to crawl any minute. The standard soundocity outriggers look OK but I'm just not in love of the design and looks of them. The outriggers that they sell for the Thiel 3.7's look really heavy duty and well made, does anyone know if they are compatible with other speakers?