Ends 11/30. Amazon has the DBPower RD-810 Portable Projector (White or Black) for $74 - $18 off with coupon F7PTD9IF = $56 with free shipping. Has excellent Amazon Reviews.
Walmart has the XO Vision In-Dash 6.2" Touch Screen Bluetooth Multimedia DVD Receiver for $73 with free shipping. Features an AM/FM radio, mini SD and mini USB ports, and selectable EQ.
Has Average Amazon Reviews, where it sells for the same price.
eBay has the Actiontec ScreenBeam Mini2 Wireless HDMI Transmitter (SBWD60A01) for $30 with free shipping. List price: $60. Wirelessly dock your Windows 10 phone or tablet to a monitor, keyboard, or mouse.
eBay has the APC Back-UPS BN450M 450VA UPS Battery Backup (Black) for $26 with free shipping. Retail price: $50.