Pyle PSI15 - Acoustic Sound Isolation Dampening Recoil Stabilizer Speaker Riser Platform Base (for Studio Monitor, Subwoofer, Loudspeakers, Shelf Speakers, etc.) 15'' x 15'' - Walmart.com
Understanding Speaker Stands & Platforms
VIVO Rustic Vintage Brown/Black Tensegrity Speaker Floor Stand Floating Platform - Walmart.com
Amazon.com: One Wooden Surround Speaker Stands, with Lockable and Fixed Universal Wheels, Wooden Double Layer Platform Base (Color : A, Size : 4045cm) : Electronics
FC-PA-14-Speaker Rail Mounted Single Post Arm w/Speaker Platform - Forecast Consoles
VibeBoss P5 - Isolation Platform Suitable for 5'' inches Speakers (9.5'' x 7'' x 1.8'') 2Pcs
File:Speaker's Platform, Pnyx Hill, Athens (4695990765).jpg - Wikimedia Commons