Paynyms are great, but not ideal for the average person donating/leaving tips. I've never heard of Geyser. Will check it out. Thank you!

Depending on the situation (e.g., if a bitcoin version of GoFundMe would suffice), there is Geyser:

*Geyser Fund - Crowdfunding with LN*
https://stacker.news/items/37532 
https://geyser.fund/

earnbitcoin

There's a post, shared here on SN, about PayNym:

Using Bitcoin to Receive Anonymous Donations, Bypass Sanctions and Help Afghans

bitcoin

Best methods to receive bitcoin donations?

buddylasta

There's a post, shared here on SN, about PayNym:

*Using Bitcoin to Receive Anonymous Donations, Bypass Sanctions and Help Afghans*
https://stacker.news/items/5968
https://medium.com/@janeygak/using-bitcoin-to-receive-anonymous-donations-bypass-sanctions-and-help-afghans-323c7c679fbc