Air controllers

[ChuckO]

Seems like the best (and maybe cheapest) is build a cinder block wind block for your WSM. Just put a couple rebars in the holes and fill them with sand or gravel or river rock

 

[Andy Kaminski]

8x8x16 builder blocks or something similar is a great idea.
You can even get them slightly fancy to go with your landscaping like with a fractured face edge or in a tan color.
Probably hold down just fine as is with caulking of a matching color.

 

[Issom]