Amazon has the Elegiant K70 Colorful LED Illuminated Backlit USB Wired Gaming Keyboard for $20 with free shipping for Prime Members or on $35+. Retail price: $62. Has good Amazon Reviews.
Amazon has the Jelly Comb Slim Wireless Keyboard and Mouse Combo (Black) for $16 - $6 off with coupon NM2EN8PK = $10 with free shipping for Prime members or on $35+. Retail price: $29. Has good Amazon Reviews.
Walmart has the Logitech K400 Wireless Touch Keyboard for $20 with free in-store pickup or $5.99 shipping to home. This wireless touch keyboard has an ample wireless range, large 3.5" built-in touchpad, and media hot keys.