Trailer Jack Wheel Stop Based off of
http://www.walmart.com/ip/SeaSense-Trailer-Jack-Wheel-Stop/16781909

Item cost around 6USD

The full model can be printed on a mendel.

The quarter model can be printed on Makerbots and assembled. All matting surfaces Have been offset by .35mm for hopefully easy assembly

Print with A medium~high infill or Hex pattern for strength. The Real models are hollow. They Look Blow molded.

Solidworks files attached