Harbor Freight has the 2-bike hitch mount for $29.99 + S/H (varies by your location)
Use Code 50174051 for $10 off = $19.99 + shipping
This bike rack mounts to your hitch to hold up to two bicycles. Handy swing-down feature gives easy access to rear hatch or tailgate.
* Use on Class I, II, III and IV hitches
* Fits both 1-1/4" and 2" hitch mount receivers
* 100 lb. total weight capacity
* Thermoplastic bike holders with four hook-and-loop straps for added security
* Pinch hitch pin to ensure stable connection to receiver
* Reflective end caps for improved visibility
Includes 2" x 2" square adapter.
Overall dimensions: 23-1/2" L x 14-1/2" W x 36-1/2" H