A little insight in to the world at large here. Also evidence that I need work on drawing mountains.
Patreon is like Kickstarter for microtransactions - That is, giving ongoing support (the most delicious kind) to independent artists you enjoy.
Shopping through the Amazon link doesn't cost you anything extra and I get a small % of each sale for the referral.
The good ‘ol Paypal tip jar, good for hit and run donations.