Ohuhu Direct via Amazon offers Prime members the Ohuhu 17" to 42" TV Tilt Wall Mount, for $19.99. Coupon code "JLTZCJ2G" drops it to $14.99. With free shipping, that's $26 off and the lowest total price we could find. (Non-members can spend $35 to bag free shipping; otherwise, it adds $10.18.) It features a 180° swivel.