No. Wax seals made with bees wax would be too expensive and would not have any benefits or advantages over our current products.
It is always important to first set the toilet bowl in place before installing the wax seal; this will confirm that the toilet bolts are aligned properly, and the floor can be checked for levelness in case the bowl will need to be shimmed during installation.   
Oatey and Hercules wax seals are a blend of Slack Wax (unrefined feed stock) and Micro Crystalline Wax (refined feed stock). These are used to control the properties and result in a premium finished product. 
Standard Johni-Bolts are 2 ¼” long.  They are also available in an extra-long length, which is 3 ½”.
Although stacking two wax seals on top of each other seems to be a common practice, Oatey does not recommend this application. We recommend using a jumbo or extra thick wax ring instead the stacking method. Also consider raising the flange height with one of our spacer kits.
All brands of wax rings produced by the Oatey Company are manufactured at the Oatey Omaha, Nebraska facility.
The following information is copied from our MSDS sheets posted on our website along with all our product submittal sheets.  Steps To Be Taken In Case Material Is Released Or Spilled: Cover with absorbent material; let soak and sweep up. Waste Disposal Method: Incinerate or bury (landfill) away from water supplies in accordance with local regulations. Precautions To Be Taken In Handling And Storing: None Other Precautions: None Remember to never dump the antifreeze products into the sewer systems.
No.
Any chemical has a certain amount of toxicity, but Hercules Cryo-Tek anti-freezes are very low. This is the statement listed on the MSDS sheets that are posted on our website that can be viewed or downloaded. Emergency and First Aid Procedures: EYE AND SKIN CONTACT: Like with all foreign material, flushing and washing with water is good safety and hygienic practice. INGESTION: Low in toxicity; induce vomiting if large amounts are ingested.
The answer depends on which Cryo-Tek antifreeze is being used, and what level of freeze protection is required. For more information, see this chart. Freeze point:  The temperature at which crystals begin to form. Pumpable:  The temperature at which there are sufficient crystals to impede the flow of the product. Burst protection:  The temperature at which pipes burst.