Amazon offers its Prime members the Celestron PowerSeeker 50AZ Telescope, model no. 21039, for $31.95 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $8.63.) That's the lowest total price we could find to spy on the moon or your neighbors by $11. It features a refracting optical design, 5x24 finderscope, 600mm focal length, 50mm aperture, and more.