I believe that you must edit subject of this topic as you are not at all actually providing this services for free of cost. On first seeing this topic, I just wondered how it is possible creating ERC tokens for free of cost as nothing is available in this world so.
Please tip me if you can, with any coin or fiat (like PayPal) you want. Also, I would like 1% of the coin supply or whatever you think is fair. Best thing to tip with is Ether cause that directly keeps this service running. I want this to be self-sustaining, not drained like a faucet, so please help if you can
Asking for tips is okay. But, 1% or any fair amount of total supply of token sounds like a demand for me. You are having 2 options to get paid for providing this service hence I guess all the people who are availing this services will definitely go for either one way for paying you. Hence, this is not a free services. Probably a low cost services or a service which is available with flexible prices.
What is the consequence of such a low cost / flexible priced services :Ethereum platform will get spammed with more number of useless tokens. When something is available for lesser prices than market value, almost all people may want to give a try including scammers and hackers.
Better fix a price which suits for your time and energy costs. Good luck!