Amazon offers its Prime members the Pyle 19" Adjustable Gooseneck Monitor / Speaker Mount, model no. PLGN19, for $8.96 with free shipping. (Non-members can spend $35 or more to bag free shipping; otherwise, it adds $5.93.) That's the lowest total price we could find by $14. It's compatible with any monitor or speaker with a 1/4" slide bracket.