Abstract: A die is utilized to cut chew toy bases from tire sidewalls extracted from used tires. The chew toy bases are placed into a cleaning tumbler containing sand and gravel for the purpose of cleaning and polishing the chew toy bases. They are subsequently removed from the cleaning tumbler and placed into a rinsing tumbler containing water to remove residual sand and dirt. The chew toy bases are placed onto a drying rack, and then removed into a final treatment tumbler containing porous media having flavoring and beautifying agents applied thereto. Rotation of the final treatment tumbler brings the chew toy bases into contact with the porous media to effect a transfer of the flavoring and beautifying agents to the chew toy bases. When removed from the final treatment tumbler, the cleaned and treated chew toy bases may be utilized as dog chew toys.

Abstract: A laboratory kit is provided with a tear-off cover portion designed to fold into a compact package for containing and/or transporting a biological specimen or the like. The laboratory kit comprises a lower tray of vacuum-formed plastic or the like and containing selected laboratory implements such as a swab, glass slide, etc. A lightweight cover of paperboard or the like is affixed to and closes the tray. A tear-off portion of the cover is removable along perforated lines to open the tray and expose the implements therein for use, after which the tear-off portion is foldable along preformed score lines to form a compact package for containing a biological specimen or the like.