Reddcoin was supposed to be a tipping coin but it has somewhat failed imo.
I've seen a bitcoin wallet that is a Chrome extension (open source), which makes transactions from the browser pretty easy as a way to make payments or donations.
I realise Verge is anonymity-centric, but not everyone who likes Verge would necessarily be against using such a thing.
When donations or payments are made through the wallet browser extension/plugin/addon, then a little reminder to tip the Verge dev could be included there. Obviously only small amounts should be kept in such a wallet. This could potentially rival Reddcoin (which is barely functional in its current state imo, and blatantly lies about being Youtube-ready in its promo video).
https://github.com/andrewtoth/BitcoinWallet https://github.com/Leo-ajc/ProTip