A number of Australian online shops -- Kaaboose, Make It So and Flash Pets -- said they would donate a percentage of revenue to help fire-struck Queensland. Both Make It So and Flash Pets were bought by the online site Amazon last year.
Kimberly Cooper, the founder of Keep It Fire Free, a charity aimed at making Queensland a "wildlife-friendly state," said the issue drew her into the competition with the "catering industry."
"The koala has been a veritable poster boy of this Christmas period," said Cooper.
"Online retailers have listened to our calls for a temporary bit of humanity and have come to the rescue. Just think about where we would be without them."
If all the participating online stores (which now number more than 50) can collectively generate US$100,000 to help save Queensland's wildlife in the bushfires, it will mark a dramatic boost to the government's "Wildlife Strategic Response Plan," which aims to aid fire victims and combat wildlife smuggling.
But the strategy, prepared jointly by Queensland's Premier Annastacia Palaszczuk and the State Government, remains "feasible" only if it raises funds from the black market.
The obvious source of money for government wildlife rescue efforts is Australia Post, which reported on Monday that the number of items being seized by authorities had increased 160 percent in the week after Christmas.
A similar problem also afflicted one of Queensland's Aboriginal communities, a fortnight after the Christmas bonanza.
"Back in March 2017, we had a lot of arson crimes going on in the area, through match burning, things like that," said Maggie George, the chairwoman of North Cape's Community Legal Service, reported The Courier Mail.
Now, the number of charges of malicious damage against local communities have more than doubled, she said.
The issue remains so acute that Australia Post has set up payment facilities for local indigenous communities, Jodi Knapp, spokeswoman for Australia Post, said.
"We want to make sure it stays simple for them to take the money [needed for fire prevention] without any 'hidden charges,'" she said.